diff --git a/Doc/ref/ref.book b/Doc/ref/ref.book
index 0e94e2c..267bf38 100644
--- a/Doc/ref/ref.book
+++ b/Doc/ref/ref.book
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diff --git a/Doc/ref/ref.ps b/Doc/ref/ref.ps
index dc3347f..bd7db3c 100644
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@@ -3492,12 +3509,12 @@
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-(definitition of the language, maybe you could volunteer your time \321 or invent a cloning machine.) 99 562.67 T
+-0.28 (definitition of the language, maybe you could volunteer your time \321 or invent a cloning machine :-\051.) 99 562.67 P
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-0.71 (times worth being mentioned, especially where the implementation imposes additional limitations.) 99 504.67 P
-(Therefore, you\325ll find short \322implementation notes\323 sprinkled throughout the text.) 99 491.67 T
+-0.64 (the other hand, there is currently only one Python implementation in widespread use, and its particular) 99 517.67 P
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@@ -3670,76 +3687,79 @@
 (ical analyzer) 99 659.67 T
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 (. This chapter describes how the lexical analyzer breaks a file into tokens.) 156.13 659.67 T
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--0.19 (be used in string literals and comments but their interpretation is platform dependent; the proper way) 99 621.67 P
-(to insert 8-bit characters in string literals is by using octal or hexadecimal escape sequences.) 99 608.67 T
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-(2.1) 99 543.67 T
-(Line structure) 135 543.67 T
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-(A Python program is divided in a number of) 99 518.67 T
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-(logical lines) 296.68 518.67 T
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--0.22 ( by following the ex-) 448.61 447.67 P
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-(followed by linefeed\051. On Macintosh, it is the ASCII CR \050return\051 character.) 99 363.67 T
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--0.63 (Two or more physical lines may be joined into logical lines using backslash characters \050) 99 247.67 P
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--1.52 (\134) 477.53 247.67 P
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--0.63 (\051, as follows:) 484.13 247.67 P
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--0.13 (   and 0 <= minute < 60 and 0 <= second < 60:   # Looks like a valid date) 99 166.33 P
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-0.22 (A line ending in a backslash cannot carry a comment. A backslash does not continue a comment. A) 99 129.67 P
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 %%EndPage: "3" 9
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-(month_names = [\325Januari\325, \325Februari\325, \325Maart\325,      # These are the) 72 661.33 T
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--0.4 (A logical line that contains only spaces, tabs, formfeeds, and possibly a comment, is ignored \050i.e., no NEW-) 72 516.67 P
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-(\050i.e. one containing not even whitespace or a comment\051 terminates a multi-line statement.) 72 490.67 T
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-(level of the line, which in turn is used to determine the grouping of statements.) 72 432.67 T
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-(             p = perm\050s\051) 99 701.33 T
-(             for x in p:) 99 689.33 T
-(              r.append\050l[i:i+1] + x\051) 99 677.33 T
-(    return r) 99 665.33 T
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-(     def perm\050l\051:                       # error: first line indented) 99 622.33 T
-(    for i in range\050len\050l\051\051:             # error: not indented) 99 610.33 T
-(        s = l[:i] + l[i+1:]) 99 598.33 T
-(            p = perm\050l[:i] + l[i+1:]\051   # error: unexpected indent) 99 586.33 T
-(            for x in p:) 99 574.33 T
-(                    r.append\050l[i:i+1] + x\051) 99 562.33 T
-(                return r                # error: inconsistent dedent) 99 550.33 T
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--0.49 (\050Actually, the first three errors are detected by the parser; only the last error is found by the lexical an-) 99 525.67 P
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+(token is generated for each number remaining on the stack that is larger than zero.) 99 686.67 T
+(Here is an example of a correctly \050though confusingly\051 indented piece of Python code:) 99 667.67 T
+2 10 Q
+(def perm\050l\051:) 99 649.33 T
+(        # Compute the list of all permutations of l) 99 637.33 T
+(    if len\050l\051 <= 1:) 99 625.33 T
+(                  return [l]) 99 613.33 T
+(    r = []) 99 601.33 T
+(    for i in range\050len\050l\051\051:) 99 589.33 T
+(             s = l[:i] + l[i+1:]) 99 577.33 T
+(             p = perm\050s\051) 99 565.33 T
+(             for x in p:) 99 553.33 T
+(              r.append\050l[i:i+1] + x\051) 99 541.33 T
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+(The following example shows various indentation errors:) 99 504.67 T
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+(     def perm\050l\051:                       # error: first line indented) 99 486.33 T
+(    for i in range\050len\050l\051\051:             # error: not indented) 99 474.33 T
+(        s = l[:i] + l[i+1:]) 99 462.33 T
+(            p = perm\050l[:i] + l[i+1:]\051   # error: unexpected indent) 99 450.33 T
+(            for x in p:) 99 438.33 T
+(                    r.append\050l[i:i+1] + x\051) 99 426.33 T
+(                return r                # error: inconsistent dedent) 99 414.33 T
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+-0.49 (\050Actually, the first three errors are detected by the parser; only the last error is found by the lexical an-) 99 389.67 P
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--0.06 (Except at the beginning of a logical line or in string literals, the whitespace characters space, tab and) 99 461.67 P
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-0.12 (only if their concatenation could otherwise be interpreted as a different token \050e.g.,) 99 435.67 P
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-0.12 ( is one token,) 480.97 435.67 P
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-( is two tokens\051.) 131.76 422.67 T
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-0.93 (Besides NEWLINE, INDENT and DEDENT, the following categories of tokens exist:) 99 370.67 P
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 %%EndPage: "5" 11
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-(ber are used in all current implementations...\051.) 99 306.67 T
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--0.21 (the back-) 499.59 281.67 P
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--0.39 ( \050This behavior is useful when debugging: if an escape sequence is mistyped,) 205.24 268.67 P
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-(") 283.49 560 T
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-( ASCII Linefeed \050LF\051) 208.5 472 T
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-( ASCII Carriage Return \050CR\051) 208.5 450 T
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-99.25 638.75 413.75 638.75 2 L
+99.25 587.75 413.75 587.75 2 L
 V
 N
-98.75 618 414.25 618 2 L
+98.75 567 414.25 567 2 L
 V
 N
-98.75 596 414.25 596 2 L
+98.75 545 414.25 545 2 L
 V
 N
-98.75 574 414.25 574 2 L
+98.75 523 414.25 523 2 L
 V
 N
-98.75 552 414.25 552 2 L
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 V
 N
-98.75 530 414.25 530 2 L
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 V
 N
-98.75 508 414.25 508 2 L
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 V
 N
-98.75 486 414.25 486 2 L
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 V
 N
-98.75 464 414.25 464 2 L
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 V
 N
-98.75 442 414.25 442 2 L
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 V
 N
-98.75 420 414.25 420 2 L
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 V
 N
-98.75 398 414.25 398 2 L
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 V
 N
-98.75 376 414.25 376 2 L
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 V
 N
-98.75 354 414.25 354 2 L
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 V
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 0 0 0 1 0 0 0 K
@@ -4576,64 +4601,72 @@
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
+0 11 Q
+(2.4.1.1) 76.5 712.67 T
+(String literal concatenation) 121.5 712.67 T
+1 F
+0.21 (Multiple adjacent string literals \050delimited by whitespace\051, possibly using different quoting conven-) 76.5 687.67 P
+-0.02 (tions, are allowed, and their meaning is the same as their concatenation. Thus,) 76.5 674.67 P
+2 F
+-0.05 ("hello") 422.37 674.67 P
+-0.05 (\325world\325) 471.3 674.67 P
+1 F
+0.41 0.12 (is equivalent to) 76.5 661.67 B
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+0.99 0.12 ("helloworld") 149.81 661.67 B
+1 F
+0.41 0.12 (. This feature can be used to reduce the number of backslashes) 230.49 661.67 B
+0.41 0.15 (needed, to split long strings conveniently across long lines, or even to add comments to parts of) 76.5 648.67 B
+(strings, for example:) 76.5 635.67 T
+2 10 Q
+(regex.compile\050"[A-Za-z_]"       # letter or underscore) 76.5 617.33 T
+(              "[A-Za-z0-9_]*"   # letter, digit or underscore) 76.5 605.33 T
+(             \051) 76.5 593.33 T
 1 11 Q
--0.32 (Note that this feature is defined at the syntactical level, but implemented at compile time. The \324+\325 op-) 76.5 712.67 P
-(erator must be used to concatenate string expressions at run time.) 76.5 699.67 T
+-0.32 (Note that this feature is defined at the syntactical level, but implemented at compile time. The \324+\325 op-) 76.5 568.67 P
+-0.17 (erator must be used to concatenate string expressions at run time. Also note that literal concatenation) 76.5 555.67 P
+(can use different quoting styles for each component.) 76.5 542.67 T
 0 12 Q
-(2.4.2) 76.5 674 T
-(Numeric literals) 121.5 674 T
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 1 11 Q
-0.97 (There are four types of numeric literals: plain integers, long integers, floating point numbers, and) 76.5 654.67 P
-(imaginary numbers.) 76.5 641.67 T
+0.97 (There are four types of numeric literals: plain integers, long integers, floating point numbers, and) 76.5 497.67 P
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 0 F
-(2.4.2.1) 76.5 619.67 T
-(Integer and long integer literals) 121.5 619.67 T
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+(Integer and long integer literals) 121.5 462.67 T
 1 F
-(Integer and long integer literals are described by the following lexical definitions:) 76.5 594.67 T
+(Integer and long integer literals are described by the following lexical definitions:) 76.5 437.67 T
 2 10 Q
-(longinteger:    integer \050"l"|"L"\051) 76.5 576.33 T
-(integer:        decimalinteger | octinteger | hexinteger) 76.5 564.33 T
-(decimalinteger: nonzerodigit digit* | "0") 76.5 552.33 T
-(octinteger:     "0" octdigit+) 76.5 540.33 T
-(hexinteger:     "0" \050"x"|"X"\051 hexdigit+) 76.5 528.33 T
-(nonzerodigit:   "1"..."9") 76.5 516.33 T
-(octdigit:       "0"..."7") 76.5 504.33 T
-(hexdigit:       digit|"a"..."f"|"A"..."F") 76.5 492.33 T
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+(integer:        decimalinteger | octinteger | hexinteger) 76.5 407.33 T
+(decimalinteger: nonzerodigit digit* | "0") 76.5 395.33 T
+(octinteger:     "0" octdigit+) 76.5 383.33 T
+(hexinteger:     "0" \050"x"|"X"\051 hexdigit+) 76.5 371.33 T
+(nonzerodigit:   "1"..."9") 76.5 359.33 T
+(octdigit:       "0"..."7") 76.5 347.33 T
+(hexdigit:       digit|"a"..."f"|"A"..."F") 76.5 335.33 T
 1 11 Q
--0.03 (Although both lower case \324l\325 and upper case \324L\325 are allowed as suffix for long integers, it is strongly) 76.5 467.67 P
-(recommended to always use \324L\325, since the letter \324l\325 looks too much like the digit \3241\325.) 76.5 454.67 T
--0.24 (Plain integer decimal literals must be at most 2147483647 \050i.e., the largest positive integer, using 32-) 76.5 429.67 P
--0.23 (bit arithmetic\051. Plain octal and hexadecimal literals may be as large as 4294967295, but values larger) 76.5 416.67 P
--0.05 (than 2147483647 are converted to a negative value by subtracting 4294967296. There is no limit for) 76.5 403.67 P
-(long integer literals apart from what can be stored in available memory.) 76.5 390.67 T
-(Some examples of plain and long integer literals:) 76.5 365.67 T
+-0.03 (Although both lower case \324l\325 and upper case \324L\325 are allowed as suffix for long integers, it is strongly) 76.5 310.67 P
+(recommended to always use \324L\325, since the letter \324l\325 looks too much like the digit \3241\325.) 76.5 297.67 T
+-0.24 (Plain integer decimal literals must be at most 2147483647 \050i.e., the largest positive integer, using 32-) 76.5 272.67 P
+-0.23 (bit arithmetic\051. Plain octal and hexadecimal literals may be as large as 4294967295, but values larger) 76.5 259.67 P
+-0.05 (than 2147483647 are converted to a negative value by subtracting 4294967296. There is no limit for) 76.5 246.67 P
+(long integer literals apart from what can be stored in available memory.) 76.5 233.67 T
+(Some examples of plain and long integer literals:) 76.5 208.67 T
 2 10 Q
-(7     2147483647                        0177    0x80000000) 76.5 347.33 T
-(3L    79228162514264337593543950336L    0377L   0x100000000L) 76.5 335.33 T
+(7     2147483647                        0177    0x80000000) 76.5 190.33 T
+(3L    79228162514264337593543950336L    0377L   0x100000000L) 76.5 178.33 T
 0 11 Q
-(2.4.2.2) 76.5 313.67 T
-(Floating point literals) 121.5 313.67 T
+(2.4.2.2) 76.5 156.67 T
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 1 F
-(Floating point literals are described by the following lexical definitions:) 76.5 288.67 T
+(Floating point literals are described by the following lexical definitions:) 76.5 131.67 T
 2 10 Q
-(floatnumber:    pointfloat | exponentfloat) 76.5 270.33 T
-(pointfloat:     [intpart] fraction | intpart ".") 76.5 258.33 T
-(exponentfloat:  \050intpart | pointfloat\051 exponent) 76.5 246.33 T
-(intpart:        digit+) 76.5 234.33 T
-(fraction:       "." digit+) 76.5 222.33 T
-(exponent:       \050"e"|"E"\051 ["+"|"-"] digit+) 76.5 210.33 T
-1 11 Q
--0.39 (The allowed range of floating point literals is implementation-dependent.  Some examples of floating) 76.5 185.67 P
-(point literals:) 76.5 172.67 T
-2 10 Q
-(3.14    10.     .001    1e100   3.14e-10) 76.5 154.33 T
-0 11 Q
-(2.4.2.3) 76.5 132.67 T
-(Imaginary literals) 121.5 132.67 T
-1 F
-(Imaginary literals are described by the following lexical definitions:) 76.5 107.67 T
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-(imagnumber:     \050floatnumber | intpart\051 \050"j"|"J"\051) 76.5 89.33 T
+(floatnumber:    pointfloat | exponentfloat) 76.5 113.33 T
+(pointfloat:     [intpart] fraction | intpart ".") 76.5 101.33 T
+(exponentfloat:  \050intpart | pointfloat\051 exponent) 76.5 89.33 T
+(intpart:        nonzerodigit digit* | "0") 76.5 77.33 T
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "8" 14
@@ -4670,72 +4703,88 @@
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 0 0 0 1 0 0 0 K
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-1 11 Q
-0.3 (An imaginary literals yields a complex number with a real part of 0.0. Complex numbers are repre-) 99 712.67 P
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--0.19 (complex number with a nonzero real part, add a floating point number to it, e.g.) 99 686.67 P
-2 F
--0.46 (\0503+4j\051.) 449.58 686.67 P
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--0.19 ( Some ex-) 495.78 686.67 P
-(amples of imaginary literals:) 99 673.67 T
 2 10 Q
-(3.14j   10.j    10 j    .001j   1e100j  3.14e-10j) 99 655.33 T
+(fraction:       "." digit+) 99 713.33 T
+(exponent:       \050"e"|"E"\051 ["+"|"-"] digit+) 99 701.33 T
 1 11 Q
--0.05 (Note that numeric literals do not include a sign; a phrase like) 99 630.67 P
-2 F
--0.12 (-1) 369.1 630.67 P
+0.41 0.01 (Note that the integer part of a floating point number cannot look like an octal integer. The allowed) 99 676.67 B
+0.22 (range of floating point literals is implementation-dependent.  Some examples of floating point liter-) 99 663.67 P
+(als:) 99 650.67 T
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+(3.14    10.     .001    1e100   3.14e-10) 99 632.33 T
+0 11 Q
+(2.4.2.3) 99 610.67 T
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 1 F
--0.05 ( is actually an expression composed) 382.3 630.67 P
-(of the unary operator \324) 99 617.67 T
+(Imaginary literals are described by the following lexical definitions:) 99 585.67 T
+2 10 Q
+(imagnumber:     \050floatnumber | intpart\051 \050"j"|"J"\051) 99 567.33 T
+1 11 Q
+0.3 (An imaginary literals yields a complex number with a real part of 0.0. Complex numbers are repre-) 99 542.67 P
+0.28 (sented as a pair of floating point numbers and have the same restrictions on their range. To create a) 99 529.67 P
+-0.19 (complex number with a nonzero real part, add a floating point number to it, e.g.) 99 516.67 P
 2 F
-(-) 197.97 617.67 T
+-0.46 (\0503+4j\051.) 449.58 516.67 P
 1 F
-(\325 and the literal) 204.57 617.67 T
+-0.19 ( Some ex-) 495.78 516.67 P
+(amples of imaginary literals:) 99 503.67 T
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+(3.14j   10.j    10 j    .001j   1e100j  3.14e-10j) 99 485.33 T
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+-0.05 (Note that numeric literals do not include a sign; a phrase like) 99 460.67 P
 2 F
-(1) 274.22 617.67 T
+-0.12 (-1) 369.1 460.67 P
 1 F
-(.) 280.82 617.67 T
+-0.05 ( is actually an expression composed) 382.3 460.67 P
+(of the unary operator \324) 99 447.67 T
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+(-) 197.97 447.67 T
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+(\325 and the literal) 204.57 447.67 T
+2 F
+(1) 274.22 447.67 T
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+(.) 280.82 447.67 T
 0 14 Q
-(2.5) 99 590.67 T
-(Operators) 135 590.67 T
+(2.5) 99 420.67 T
+(Operators) 135 420.67 T
 1 11 Q
-(The following tokens are operators:) 99 565.67 T
+(The following tokens are operators:) 99 395.67 T
 2 10 Q
-(+       -       *       **      /       %) 99 547.33 T
-(<<      >>      &       |       ^       ~) 99 535.33 T
-(<       >       <=      >=      ==      !=      <>) 99 523.33 T
+(+       -       *       **      /       %) 99 377.33 T
+(<<      >>      &       |       ^       ~) 99 365.33 T
+(<       >       <=      >=      ==      !=      <>) 99 353.33 T
 1 11 Q
--0.06 (The comparison operators) 99 498.67 P
+-0.06 (The comparison operators) 99 328.67 P
 2 F
--0.14 (<>) 216.44 498.67 P
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 1 F
--0.06 ( and) 229.64 498.67 P
+-0.06 ( and) 229.64 328.67 P
 2 F
--0.14 (!=) 250.9 498.67 P
+-0.14 (!=) 250.9 328.67 P
 1 F
--0.06 ( are alternate spellings of the same operator; != is the preferred) 264.1 498.67 P
-(spelling,  <> is obsolescent.) 99 485.67 T
+-0.06 ( are alternate spellings of the same operator; != is the preferred) 264.1 328.67 P
+(spelling,  <> is obsolescent.) 99 315.67 T
 0 14 Q
-(2.6) 99 458.67 T
-(Delimiters) 135 458.67 T
+(2.6) 99 288.67 T
+(Delimiters) 135 288.67 T
 1 11 Q
-(The following tokens serve as delimiters in the grammar:) 99 433.67 T
+(The following tokens serve as delimiters in the grammar:) 99 263.67 T
 2 10 Q
-(\050       \051       [       ]       {       }) 99 415.33 T
-(,       :       .       \324       =       ;) 99 403.33 T
+(\050       \051       [       ]       {       }) 99 245.33 T
+(,       :       .       \324       =       ;) 99 233.33 T
 1 11 Q
-0.05 (The period can also occur in floating-point and imaginary literals. A sequence of three periods has a) 99 378.67 P
-(special meaning as ellipses in slices.) 99 365.67 T
-0.41 0.01 (The following printing ASCII characters have special meaning as part of other tokens or are other-) 99 340.67 B
-(wise significant to the lexical analyzer:) 99 327.67 T
+0.05 (The period can also occur in floating-point and imaginary literals. A sequence of three periods has a) 99 208.67 P
+(special meaning as ellipses in slices.) 99 195.67 T
+0.41 0.01 (The following printing ASCII characters have special meaning as part of other tokens or are other-) 99 170.67 B
+(wise significant to the lexical analyzer:) 99 157.67 T
 2 10 Q
-(\325       "       #       \134) 99 309.33 T
+(\325       "       #       \134) 99 139.33 T
 1 11 Q
-0.19 (The following printing ASCII characters are not used in Python. Their occurrence outside string lit-) 99 284.67 P
-(erals and comments is an unconditional error:) 99 271.67 T
+0.19 (The following printing ASCII characters are not used in Python. Their occurrence outside string lit-) 99 114.67 P
+(erals and comments is an unconditional error:) 99 101.67 T
 2 10 Q
-(@       $       ?) 99 253.33 T
+(@       $       ?) 99 83.33 T
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "9" 15
@@ -5325,7 +5374,7 @@
 1 F
 0.8 (A user-defined function object is created by a function definition.) 221.88 504.67 P
 (\050See \322Function definitions\323 on page) 130.5 491.67 T
-(48.\051) 291.51 491.67 T
+(50.\051) 291.51 491.67 T
 0.53 (Special read-only attributes:) 130.5 474.67 P
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 1.27 (func_doc) 258.88 474.67 P
@@ -5786,7 +5835,7 @@
 (Classes) 99 127.67 T
 1 F
 0.34 (Class objects are created by class definitions \050See \322Class definitions\323 on page) 135.97 127.67 P
-0.34 (49.\051. A class) 484.33 127.67 P
+0.34 (51.\051. A class) 484.33 127.67 P
 -0.62 (has a name space implemented by a dictionary object. Class attribute references are translated) 135 114.67 P
 0.72 (to lookups in this dictionary, e.g. \324\324) 135 101.67 P
 2 F
@@ -5897,80 +5946,78 @@
 0.55 (override various other special operations, if they have methods with certain special names.) 112.5 370.67 P
 (See \322Special method names\323 on page) 112.5 357.67 T
 (18.) 279.91 357.67 T
--0.09 (Special read-only attributes:) 112.5 340.67 P
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--0.22 (__dict__) 239.01 340.67 P
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 1 F
--0.09 ( yields the attribute dictionary;) 291.82 340.67 P
+1.29 ( yields the attribute dictionary;) 249.77 340.67 P
 2 F
--0.22 (__class__) 429.16 340.67 P
+3.1 (__class__) 394.03 340.67 P
 1 F
--0.09 ( yields) 488.56 340.67 P
-(the instance\325s class.) 112.5 327.67 T
+1.29 ( yields the in-) 453.43 340.67 P
+0.41 (stance\325s class. In some implementations these may be assigned a new value; the new value) 112.5 327.67 P
+(must have the same type as the old value.) 112.5 314.67 T
 4 F
-(Files) 76.5 308.67 T
+(Files) 76.5 295.67 T
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--0.4 (A file object represents an open file. It is a wrapper around a C standard I/O \050) 112.5 308.67 P
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--0.4 (stdio) 446.79 308.67 P
-1 F
--0.4 (\051 file point-) 468.18 308.67 P
--0.35 (er. File objects are created by the) 112.5 295.67 P
+-0.59 (A file object represents an open file. File objects are created by the) 112.5 295.67 P
 2 F
--0.83 (open\050\051) 258.52 295.67 P
+-1.41 (open\050\051) 401.77 295.67 P
 1 F
--0.35 ( built-in function, and also by) 298.12 295.67 P
+-0.59 ( built-in function,) 441.37 295.67 P
+0.78 (and also by) 112.5 282.67 P
 2 F
--0.83 (posix.popen\050\051) 428.95 295.67 P
+1.86 (os.popen\050\051) 167.68 282.67 P
 1 F
--0.35 (,) 514.75 295.67 P
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 2 F
-1.04 (posix.fdopen\050\051) 112.5 282.67 P
+1.86 (os.fdopen\050\051) 239.96 282.67 P
 1 F
-0.43 ( and the) 204.9 282.67 P
+0.78 ( and the) 312.56 282.67 P
 2 F
-1.04 (makefile) 243.77 282.67 P
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 1 F
-0.43 ( method of socket objects. The objects) 296.57 282.67 P
+0.78 ( method of socket ob-) 418.46 282.67 P
+0.51 (jects \050and perhaps by other functions or methods provided by extension modules\051. The ob-) 112.5 269.67 P
+4.25 (jects) 112.5 256.67 P
 2 F
-1.04 (sys.st-) 471.3 282.67 P
--1.48 (din) 112.5 269.67 P
+10.2 (sys.stdin) 139.66 256.67 P
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--0.62 (,) 132.3 269.67 P
+4.25 (,) 199.06 256.67 P
 2 F
--1.48 (sys.stdout) 137.18 269.67 P
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--0.62 ( and) 203.18 269.67 P
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 2 F
--1.48 (sys.stderr) 223.33 269.67 P
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--0.62 ( are initialized to file objects corresponding to the in-) 289.33 269.67 P
-0.96 (terpreter\325s standard input, output and error streams. See the Python Library Reference for) 112.5 256.67 P
-(methods of file objects and other details.) 112.5 243.67 T
+4.25 ( are initialized to file objects) 370.69 256.67 P
+-0.6 (corresponding to the interpreter\325s standard input, output and error streams. See the Python Li-) 112.5 243.67 P
+(brary Reference for complete documentation of file objects.) 112.5 230.67 T
 4 F
-(Internal types) 76.5 224.67 T
+(Internal types) 76.5 211.67 T
 1 F
--0.69 (A few types used internally by the interpreter are exposed to the user. Their definitions) 144.94 224.67 P
--0.42 (may change with future versions of the interpreter, but they are mentioned here for complete-) 112.5 211.67 P
-(ness.) 112.5 198.67 T
+-0.69 (A few types used internally by the interpreter are exposed to the user. Their definitions) 144.94 211.67 P
+-0.42 (may change with future versions of the interpreter, but they are mentioned here for complete-) 112.5 198.67 P
+(ness.) 112.5 185.67 T
 4 F
-(Code objects) 112.5 179.67 T
+(Code objects) 112.5 166.67 T
 1 F
--0.45 (Code objects represent) 175.43 179.67 P
+-0.45 (Code objects represent) 175.43 166.67 P
 3 F
--0.45 (byte-compile) 277.04 179.67 P
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 1 F
--0.45 ( executable Python code, or) 333.85 179.67 P
+-0.45 ( executable Python code, or) 333.85 166.67 P
 3 F
--0.45 (bytecode) 456.25 179.67 P
+-0.45 (bytecode) 456.25 166.67 P
 1 F
--0.45 (. The) 495.34 179.67 P
--0.5 (difference between a code object and a function object is that the function object contains) 130.5 166.67 P
-0.23 (an explicit reference to the function\325s globals \050the name space dictionary of the module) 130.5 153.67 P
-0.18 (in which it was defined\051, while a code object contains no context; also the default argu-) 130.5 140.67 P
--0.02 (ment values are stored in the function object, not in the code object \050because they repre-) 130.5 127.67 P
-0.1 (sent values calculated at run-time\051. Unlike function objects, code objects are immutable) 130.5 114.67 P
-(and contain no references \050directly or indirectly\051 to mutable objects.) 130.5 101.67 T
+-0.45 (. The) 495.34 166.67 P
+-0.5 (difference between a code object and a function object is that the function object contains) 130.5 153.67 P
+0.23 (an explicit reference to the function\325s globals \050the name space dictionary of the module) 130.5 140.67 P
+0.18 (in which it was defined\051, while a code object contains no context; also the default argu-) 130.5 127.67 P
+-0.02 (ment values are stored in the function object, not in the code object \050because they repre-) 130.5 114.67 P
+0.1 (sent values calculated at run-time\051. Unlike function objects, code objects are immutable) 130.5 101.67 P
+(and contain no references \050directly or indirectly\051 to mutable objects.) 130.5 88.67 T
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "16" 22
@@ -6114,119 +6161,116 @@
 0.46 (f_restricted) 153 416.67 P
 1 F
 0.19 ( is a flag indicating whether the function is executing in restricted ex-) 232.2 416.67 P
--0.49 (ecution mode;) 153 403.67 P
+-0.54 (ecution mode;) 153 403.67 P
 2 F
--1.17 (f_owner) 217.41 403.67 P
+-1.3 (f_lineno) 217.3 403.67 P
 1 F
--0.49 ( is the class or module that defined the code, if any;) 263.61 403.67 P
+-0.54 ( gives the current line number and) 270.1 403.67 P
 2 F
--1.17 (f_lineno) 487.2 403.67 P
+-1.3 (f_lasti) 419.36 403.67 P
 1 F
--0.58 (gives the current line number and) 153 390.67 P
+-0.54 ( gives the precise) 465.56 403.67 P
+(instruction \050this is an index into the instruction string of the code object\051.) 153 390.67 T
+0.9 (Special writable attributes:) 153 373.67 P
 2 F
--1.39 (f_lasti) 299.83 390.67 P
+2.15 (f_trace) 276.37 373.67 P
 1 F
--0.58 ( gives the precise instruction \050this is an index) 346.03 390.67 P
-(into the instruction string of the code object\051.) 153 377.67 T
-0.9 (Special writable attributes:) 153 360.67 P
+0.9 (, if not) 322.57 373.67 P
 2 F
-2.15 (f_trace) 276.37 360.67 P
+2.15 (None) 357.04 373.67 P
 1 F
-0.9 (, if not) 322.57 360.67 P
-2 F
-2.15 (None) 357.04 360.67 P
-1 F
-0.9 (, is a function called at the start of) 383.44 360.67 P
-(each source code line \050this is used by the debugger\051.) 153 347.67 T
+0.9 (, is a function called at the start of) 383.44 373.67 P
+(each source code line \050this is used by the debugger\051.) 153 360.67 T
 4 F
-(Traceback objects) 135 328.67 T
+(Traceback objects) 135 341.67 T
 1 F
-0.44 ( Traceback objects represent a stack trace of an exception. A traceback) 223.59 328.67 P
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 FMENDPAGE
 %%EndPage: "17" 23
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 FMENDPAGE
 %%EndPage: "18" 24
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-(non-integral numbers\051 should be left undefined.) 99 571.67 T
+-0.16 (The) 135 712.67 P
 2 F
-(__add__\050self, right\051) 99 552.67 T
-(__sub__\050self, right\051) 99 539.67 T
-(__mul__\050self, right\051) 99 526.67 T
-(__div__\050self, right\051) 99 513.67 T
-(__mod__\050self, right\051) 99 500.67 T
-(__divmod__\050self, right\051) 99 487.67 T
-(__pow__\050self, right\051) 99 474.67 T
-(__lshift__\050self, right\051) 99 461.67 T
-(__rshift__\050self, right\051) 99 448.67 T
-(__and__\050self, right\051) 99 435.67 T
-(__xor__\050self, right\051) 99 422.67 T
-(__or__\050self, right\051) 99 409.67 T
+-0.39 (sequence) 154.69 712.67 P
 1 F
-0.44 (These functions are called to implement the binary arithmetic operations \050+, -, *, /, %, div-) 135 396.67 P
-0.67 (mod\050\051, pow\050\051, <<, >>, &, ^, |\051. For instance: to evaluate the expression x+y, where x is an) 135 383.67 P
-(instance of a class that has an __add__ method, x.__add__\050y\051 is called.) 135 370.67 T
+-0.16 ( argument can have any type. The return value should be) 207.49 712.67 P
 2 F
-(__radd__\050self, left\051) 99 351.67 T
-(__rsub__\050self, left\051) 99 338.67 T
-(__rmul__\050self, left\051) 99 325.67 T
-(__rdiv__\050self, left\051) 99 312.67 T
-(__rmod__\050self, left\051) 99 299.67 T
-(__rdivmod__\050self, left\051) 99 286.67 T
-(__rpow__\050self, left\051) 99 273.67 T
-(__rlshift__\050self, left\051) 99 260.67 T
-(__rrshift__\050self, left\051) 99 247.67 T
-(__rand__\050self, left\051) 99 234.67 T
-(__rxor__\050self, left\051) 99 221.67 T
-(__ror__\050self, left\051) 99 208.67 T
+-0.39 (None) 458.02 712.67 P
 1 F
--1.3 ( These functions are called to implement the binary arithmetic operations) 231 208.67 P
--0.5 (\050) 135 195.67 P
+-0.16 (. Same notes) 484.42 712.67 P
+(for) 135 699.67 T
 2 F
--1.21 (+) 138.66 195.67 P
+(i) 150.58 699.67 T
 1 F
--0.5 (,) 145.26 195.67 P
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 2 F
--1.21 (-) 150.26 195.67 P
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 1 F
--0.5 (,) 156.86 195.67 P
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 2 F
--1.21 (*) 161.85 195.67 P
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 1 F
--0.5 (,) 168.46 195.67 P
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 2 F
--1.21 (/) 173.45 195.67 P
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 1 F
--0.5 (,) 180.05 195.67 P
+-0.77 (Called to implement deletion of) 264 680.67 P
 2 F
--1.21 (%) 185.05 195.67 P
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 1 F
--0.5 (,) 191.65 195.67 P
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 2 F
--1.21 (divmod\050\051) 196.64 195.67 P
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 1 F
--0.5 (,) 249.44 195.67 P
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 2 F
--1.21 (pow\050\051) 254.44 195.67 P
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 1 F
--0.5 (,) 287.44 195.67 P
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 2 F
--1.21 (<<) 292.44 195.67 P
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 1 F
--0.5 (,) 305.64 195.67 P
-2 F
--1.21 (>>) 310.63 195.67 P
+(.) 269.67 667.67 T
+0.08 (Notice that these methods are only invoked when a single slice with a single colon is used. For slice) 99 642.67 P
+0.33 (operations involving) 99 629.67 P
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 1 F
--0.5 (,) 323.83 195.67 P
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 2 F
--1.21 (&) 328.83 195.67 P
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 1 F
--0.5 (,) 335.43 195.67 P
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 2 F
--1.21 (^) 340.42 195.67 P
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 1 F
--0.5 (,) 347.02 195.67 P
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 2 F
--1.21 (|) 352.02 195.67 P
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 1 F
--0.5 (\051 with reversed operands. These functions) 358.62 195.67 P
--0.62 (are only called if the left operand does not support the corresponding operation \050possibly after) 135 182.67 P
--0.09 (coercion\051. For instance: to evaluate the expression x+y, where x is an instance of a class that) 135 169.67 P
-2.63 (does not have an) 135 156.67 P
+(is called.) 99 616.67 T
+0 12 Q
+(3.3.5) 99 591 T
+(Emulating numeric types) 144 591 T
+1 11 Q
+-0.15 (The following methods can be defined to emulate numeric objects. Methods corresponding to opera-) 99 565.67 P
+-0.54 (tions that are not supported by the particular kind of number implemented \050e.g., bitwise operations for) 99 552.67 P
+(non-integral numbers\051 should be left undefined.) 99 539.67 T
 2 F
-6.31 (__add__) 221.89 156.67 P
+(__add__\050self, right\051) 99 520.67 T
+(__sub__\050self, right\051) 99 507.67 T
+(__mul__\050self, right\051) 99 494.67 T
+(__div__\050self, right\051) 99 481.67 T
+(__mod__\050self, right\051) 99 468.67 T
+(__divmod__\050self, right\051) 99 455.67 T
+(__pow__\050self, right\051) 99 442.67 T
+(__lshift__\050self, right\051) 99 429.67 T
+(__rshift__\050self, right\051) 99 416.67 T
+(__and__\050self, right\051) 99 403.67 T
+(__xor__\050self, right\051) 99 390.67 T
+(__or__\050self, right\051) 99 377.67 T
 1 F
-2.63 ( method,) 268.09 156.67 P
+0.44 (These functions are called to implement the binary arithmetic operations \050+, -, *, /, %, div-) 135 364.67 P
+0.67 (mod\050\051, pow\050\051, <<, >>, &, ^, |\051. For instance: to evaluate the expression x+y, where x is an) 135 351.67 P
+(instance of a class that has an __add__ method, x.__add__\050y\051 is called.) 135 338.67 T
 2 F
-6.31 (y.__radd\050x\051) 314.59 156.67 P
+(__radd__\050self, left\051) 99 319.67 T
+(__rsub__\050self, left\051) 99 306.67 T
+(__rmul__\050self, left\051) 99 293.67 T
+(__rdiv__\050self, left\051) 99 280.67 T
+(__rmod__\050self, left\051) 99 267.67 T
+(__rdivmod__\050self, left\051) 99 254.67 T
+(__rpow__\050self, left\051) 99 241.67 T
+(__rlshift__\050self, left\051) 99 228.67 T
+(__rrshift__\050self, left\051) 99 215.67 T
+(__rand__\050self, left\051) 99 202.67 T
+(__rxor__\050self, left\051) 99 189.67 T
+(__ror__\050self, left\051) 99 176.67 T
 1 F
-2.63 ( is called. If the class defines a) 387.19 156.67 P
-0.37 (__coerce__ method that coerces its arguments to a common type, these methods will never) 135 143.67 P
-0.54 (be called and thus needn\325t be defined. They are useful for classes that implement semi-nu-) 135 130.67 P
--0.53 (merical data types \050types that have some numerical behavior but don\325t adhere to all invariants) 135 117.67 P
-(usually assumed about numbers\051.) 135 104.67 T
+-1.3 ( These functions are called to implement the binary arithmetic operations) 231 176.67 P
+-0.5 (\050) 135 163.67 P
 2 F
-(__neg__\050self\051) 99 85.67 T
-(__pos__\050self\051) 99 72.67 T
+-1.21 (+) 138.66 163.67 P
+1 F
+-0.5 (,) 145.26 163.67 P
+2 F
+-1.21 (-) 150.26 163.67 P
+1 F
+-0.5 (,) 156.86 163.67 P
+2 F
+-1.21 (*) 161.85 163.67 P
+1 F
+-0.5 (,) 168.46 163.67 P
+2 F
+-1.21 (/) 173.45 163.67 P
+1 F
+-0.5 (,) 180.05 163.67 P
+2 F
+-1.21 (%) 185.05 163.67 P
+1 F
+-0.5 (,) 191.65 163.67 P
+2 F
+-1.21 (divmod\050\051) 196.64 163.67 P
+1 F
+-0.5 (,) 249.44 163.67 P
+2 F
+-1.21 (pow\050\051) 254.44 163.67 P
+1 F
+-0.5 (,) 287.44 163.67 P
+2 F
+-1.21 (<<) 292.44 163.67 P
+1 F
+-0.5 (,) 305.64 163.67 P
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+-1.21 (>>) 310.63 163.67 P
+1 F
+-0.5 (,) 323.83 163.67 P
+2 F
+-1.21 (&) 328.83 163.67 P
+1 F
+-0.5 (,) 335.43 163.67 P
+2 F
+-1.21 (^) 340.42 163.67 P
+1 F
+-0.5 (,) 347.02 163.67 P
+2 F
+-1.21 (|) 352.02 163.67 P
+1 F
+-0.5 (\051 with reversed operands. These functions) 358.62 163.67 P
+-0.62 (are only called if the left operand does not support the corresponding operation \050possibly after) 135 150.67 P
+-0.09 (coercion\051. For instance: to evaluate the expression x+y, where x is an instance of a class that) 135 137.67 P
+2.63 (does not have an) 135 124.67 P
+2 F
+6.31 (__add__) 221.89 124.67 P
+1 F
+2.63 ( method,) 268.09 124.67 P
+2 F
+6.31 (y.__radd\050x\051) 314.59 124.67 P
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+2.63 ( is called. If the class defines a) 387.19 124.67 P
+0.37 (__coerce__ method that coerces its arguments to a common type, these methods will never) 135 111.67 P
+0.54 (be called and thus needn\325t be defined. They are useful for classes that implement semi-nu-) 135 98.67 P
+-0.53 (merical data types \050types that have some numerical behavior but don\325t adhere to all invariants) 135 85.67 P
+(usually assumed about numbers\051.) 135 72.67 T
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "21" 27
@@ -7200,215 +7252,217 @@
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 2 11 Q
-(__abs__\050self\051) 76.5 712.67 T
-(__invert__\050self\051) 76.5 699.67 T
+(__neg__\050self\051) 76.5 712.67 T
+(__pos__\050self\051) 76.5 699.67 T
+(__abs__\050self\051) 76.5 686.67 T
+(__invert__\050self\051) 76.5 673.67 T
 1 F
--0.14 ( Called to implement the unary arithmetic operations \050) 188.7 699.67 P
+-0.14 ( Called to implement the unary arithmetic operations \050) 188.7 673.67 P
 2 F
--0.34 (-) 426.48 699.67 P
+-0.34 (-) 426.48 673.67 P
 1 F
--0.14 (,) 433.08 699.67 P
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 2 F
--0.34 (+) 438.43 699.67 P
+-0.34 (+) 438.43 673.67 P
 1 F
--0.14 (,) 445.03 699.67 P
+-0.14 (,) 445.03 673.67 P
 2 F
--0.34 (abs\050\051) 450.39 699.67 P
+-0.34 (abs\050\051) 450.39 673.67 P
 1 F
--0.14 ( and) 483.39 699.67 P
+-0.14 ( and) 483.39 673.67 P
 2 F
--0.34 (~) 504.49 699.67 P
+-0.34 (~) 504.49 673.67 P
 1 F
--0.14 (\051.) 511.09 699.67 P
+-0.14 (\051.) 511.09 673.67 P
 2 F
-(__int__\050self\051) 76.5 680.67 T
-(__long__\050self\051) 76.5 667.67 T
-(__float__\050self\051) 76.5 654.67 T
+(__int__\050self\051) 76.5 654.67 T
+(__long__\050self\051) 76.5 641.67 T
+(__float__\050self\051) 76.5 628.67 T
 1 F
--0.34 ( Called to implement the built-in functions) 182.1 654.67 P
+-0.34 ( Called to implement the built-in functions) 182.1 628.67 P
 2 F
--0.82 (int\050\051) 370.09 654.67 P
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 1 F
--0.34 (,) 403.09 654.67 P
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 2 F
--0.82 (long\050\051) 408.25 654.67 P
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 1 F
--0.34 ( and) 447.85 654.67 P
+-0.34 ( and) 447.85 628.67 P
 2 F
--0.82 (float\050\051) 468.55 654.67 P
+-0.82 (float\050\051) 468.55 628.67 P
 1 F
--0.34 (.) 514.75 654.67 P
-(Should return a value of the appropriate type.) 112.5 641.67 T
+-0.34 (.) 514.75 628.67 P
+(Should return a value of the appropriate type.) 112.5 615.67 T
 2 F
-(__oct__\050self\051) 76.5 622.67 T
-(__hex__\050self\051) 76.5 609.67 T
+(__oct__\050self\051) 76.5 596.67 T
+(__hex__\050self\051) 76.5 583.67 T
 1 F
--0.21 ( Called to implement the built-in functions) 168.9 609.67 P
+-0.21 ( Called to implement the built-in functions) 168.9 583.67 P
 2 F
--0.5 (oct\050\051) 357.82 609.67 P
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 1 F
--0.21 ( and) 390.82 609.67 P
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 2 F
--0.5 (hex\050\051) 411.79 609.67 P
+-0.5 (hex\050\051) 411.79 583.67 P
 1 F
--0.21 (. Should return a) 444.79 609.67 P
-(string value.) 112.5 596.67 T
+-0.21 (. Should return a) 444.79 583.67 P
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 2 F
-(__coerce__\050self, other\051) 76.5 577.67 T
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 1 F
-0.3 (Called to implement \322mixed-mode\323 numeric arithmetic. Should) 234.9 577.67 P
--0.34 (either return a 2-tuple containing) 112.5 564.67 P
+0.3 (Called to implement \322mixed-mode\323 numeric arithmetic. Should) 234.9 551.67 P
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--0.82 (self) 258.34 564.67 P
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 1 F
--0.34 ( and) 284.74 564.67 P
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 2 F
--0.82 (other) 305.43 564.67 P
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 1 F
--0.34 ( converted to a common numeric type, or) 338.43 564.67 P
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 2 F
-0.6 (None) 112.5 551.67 P
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 1 F
-0.25 ( if no conversion is possible. When the common type would be the type of) 138.9 551.67 P
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 2 F
-0.6 (other) 472.63 551.67 P
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 1 F
-0.25 (, it) 505.63 551.67 P
-0.46 (is sufficient to return) 112.5 538.67 P
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 2 F
-1.11 (None) 209.06 538.67 P
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 1 F
-0.46 (, since the interpreter will also ask the other object to attempt a) 235.46 538.67 P
--0.39 (coercion \050but sometimes, if the implementation of the other type cannot be changed, it is use-) 112.5 525.67 P
-(ful to do the conversion to the other type here\051.) 112.5 512.67 T
+0.46 (, since the interpreter will also ask the other object to attempt a) 235.46 512.67 P
+-0.39 (coercion \050but sometimes, if the implementation of the other type cannot be changed, it is use-) 112.5 499.67 P
+(ful to do the conversion to the other type here\051.) 112.5 486.67 T
 4 F
-1.86 (Coercion rules) 112.5 495.67 P
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 1 F
-1.86 (: to evaluate x) 183.1 495.67 P
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 3 F
-1.86 (op) 255.29 495.67 P
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 1 F
-1.86 ( y, the following steps are taken \050where) 266.29 495.67 P
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 2 F
-4.46 (__op__) 457.41 495.67 P
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 1 F
-1.86 ( and) 497.01 495.67 P
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 2 F
-4.69 (__rop__) 112.5 482.67 P
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 1 F
-1.96 ( are the method names corresponding to) 158.7 482.67 P
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 3 F
-1.96 (op) 351.11 482.67 P
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 1 F
-1.96 (, e.g. if) 362.11 482.67 P
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 3 F
-1.96 (op) 401.58 482.67 P
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 1 F
-1.96 ( is \324) 412.58 482.67 P
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 2 F
-4.69 (+) 432.99 482.67 P
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 1 F
-1.96 (\325,) 439.59 482.67 P
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 2 F
-4.69 (__add__) 450.71 482.67 P
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 1 F
-1.96 ( and) 496.91 482.67 P
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 2 F
-0.89 (__radd__) 112.5 469.67 P
+0.89 (__radd__) 112.5 443.67 P
 1 F
-0.37 ( are used\051. If an exception occurs at any point, the evaluation is abandoned and) 165.3 469.67 P
-(exception handling takes over.) 112.5 456.67 T
-(0.) 112.5 437.67 T
-0.31 (If x is a string object and) 130.5 437.67 P
+0.37 ( are used\051. If an exception occurs at any point, the evaluation is abandoned and) 165.3 443.67 P
+(exception handling takes over.) 112.5 430.67 T
+(0.) 112.5 411.67 T
+0.31 (If x is a string object and) 130.5 411.67 P
 3 F
-0.31 (op) 244.77 437.67 P
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 1 F
-0.31 ( is the modulo operator \050) 255.77 437.67 P
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 2 F
-0.74 (%) 365.77 437.67 P
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 1 F
-0.31 (\051, the string formatting operation) 372.37 437.67 P
-(\050see [Ref:XXX]\051 is invoked and the remaining steps are skipped.) 130.5 424.67 T
-(1.) 112.5 405.67 T
-(If x is a class instance:) 130.5 405.67 T
-(1a.) 130.5 386.67 T
-0.54 (If x has a) 166.5 386.67 P
+0.31 (\051, the string formatting operation) 372.37 411.67 P
+(\050see [Ref:XXX]\051 is invoked and the remaining steps are skipped.) 130.5 398.67 T
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+(If x is a class instance:) 130.5 379.67 T
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 2 F
-1.3 (__coerce__) 212.05 386.67 P
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 1 F
-0.54 ( method: replace x and y with the 2-tuple returned by) 278.05 386.67 P
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 2 F
-(x.__coerce__\050y\051) 166.5 373.67 T
+(x.__coerce__\050y\051) 166.5 347.67 T
 1 F
-(; skip to step 2 if the coercion returns) 265.5 373.67 T
+(; skip to step 2 if the coercion returns) 265.5 347.67 T
 2 F
-(None) 432.01 373.67 T
+(None) 432.01 347.67 T
 1 F
-(.) 458.41 373.67 T
-(1b.) 130.5 354.67 T
-(If neither x nor y is a class instance after coercion, go to step 3.) 166.5 354.67 T
-(1c.) 130.5 335.67 T
--0.41 (If x has a method) 166.5 335.67 P
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 2 F
--0.98 (__op__) 243.59 335.67 P
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 1 F
--0.41 (, return) 283.19 335.67 P
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 2 F
--0.98 (x.__op__\050y\051) 316.89 335.67 P
+-0.98 (x.__op__\050y\051) 316.89 309.67 P
 1 F
--0.41 (; otherwise, restore x and y to) 389.49 335.67 P
-(their value before step 1a.) 166.5 322.67 T
-(2.) 112.5 303.67 T
-(If y is a class instance:) 130.5 303.67 T
-(2a.) 130.5 284.67 T
-0.54 (If y has a) 166.5 284.67 P
+-0.41 (; otherwise, restore x and y to) 389.49 309.67 P
+(their value before step 1a.) 166.5 296.67 T
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+(If y is a class instance:) 130.5 277.67 T
+(2a.) 130.5 258.67 T
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 2 F
-1.3 (__coerce__) 212.05 284.67 P
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 1 F
-0.54 ( method: replace y and x with the 2-tuple returned by) 278.05 284.67 P
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 2 F
-(y.__coerce__\050x\051) 166.5 271.67 T
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 1 F
-(; skip to step 3 if the coercion returns None.) 265.5 271.67 T
-(2b.) 130.5 252.67 T
-(If neither x nor y is a class instance after coercion, go to step 3.) 166.5 252.67 T
-(2b.) 130.5 233.67 T
-0.1 (If y has a method) 166.5 233.67 P
+(; skip to step 3 if the coercion returns None.) 265.5 245.67 T
+(2b.) 130.5 226.67 T
+(If neither x nor y is a class instance after coercion, go to step 3.) 166.5 226.67 T
+(2b.) 130.5 207.67 T
+0.1 (If y has a method) 166.5 207.67 P
 2 F
-0.23 (__rop__) 246.11 233.67 P
+0.23 (__rop__) 246.11 207.67 P
 1 F
-0.1 (, return) 292.31 233.67 P
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 2 F
-0.23 (y.__rop__\050x\051) 327.02 233.67 P
+0.23 (y.__rop__\050x\051) 327.02 207.67 P
 1 F
-0.1 (; otherwise, restore x and) 406.22 233.67 P
-(y to their value before step 2a.) 166.5 220.67 T
-(3.) 112.5 201.67 T
-(We only get here if neither x nor y is a class instance.) 130.5 201.67 T
-(3a.) 130.5 182.67 T
-(If) 166.5 182.67 T
+0.1 (; otherwise, restore x and) 406.22 207.67 P
+(y to their value before step 2a.) 166.5 194.67 T
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--0.37 (\325 and one operand is a sequence and the other an integer, sequence rep-) 209.56 163.67 P
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@@ -8106,7 +8160,7 @@
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-(A dictionary display yields a new dictionary object) 99 155.67 T
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 FMENDPAGE
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-0.41 0.11 ( to yield an expression with the same value \050or an approximation, if floating) 192.09 521.67 B
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-(A subscription selects an item of a sequence \050string, tuple or list\051 or mapping \050dictionary\051 object:) 99 139.67 T
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 FMENDPAGE
 %%EndPage: "29" 35
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-(del) 284.45 526.67 T
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-(slicing:          simple_slicing | extended_slicing) 99 508.33 T
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--0.09 (There\325s an ambiguity in the formal syntax here: anything that looks like an expression list also looks) 99 351.67 P
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--0.37 (slice nor ellipses\051. Similarly, when the slice list has exactly one short slice and no trailing comma, the) 99 299.67 P
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 1 F
-0.38 ( where) 402.64 222.67 P
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 3 F
-0.38 (i) 435.77 222.67 P
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 1 F
-0.38 ( and) 438.83 222.67 P
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 3 F
-0.38 (j) 460.97 222.67 P
+0.38 (j) 460.97 197.67 P
 1 F
-0.38 ( are the specified) 464.03 222.67 P
-0.41 0.06 (lower and upper bounds. This may be an empty sequence. It is not an error if) 99 209.67 B
+0.38 ( are the specified) 464.03 197.67 P
+0.41 0.06 (lower and upper bounds. This may be an empty sequence. It is not an error if) 99 184.67 B
 3 F
-0.41 0.06 (i) 451.37 209.67 B
+0.41 0.06 (i) 451.37 184.67 B
 1 F
-0.41 0.06 ( or) 454.49 209.67 B
+0.41 0.06 ( or) 454.49 184.67 B
 3 F
-0.41 0.06 (j) 470.23 209.67 B
+0.41 0.06 (j) 470.23 184.67 B
 1 F
-0.41 0.06 ( lie outside the) 473.35 209.67 B
-(range of valid indexes \050such items don\325t exist so they aren\325t selected\051.) 99 196.67 T
--0.35 (The semantics for an extended slicing are as follows. The primary must evaluate to a mapping object,) 99 171.67 P
--0.01 (and it is indexed with a key that is constructed from the slice list, as follows. If the slice list contains) 99 158.67 P
--0.42 (at least one comma, the key is a tuple containing the conversion of the slice items; otherwise, the con-) 99 145.67 P
--0.39 (version of the lone slice item is the key. The conversion of a slice item that is an expression is that ex-) 99 132.67 P
--0.38 (pression. The conversion of an ellipsis slice item is the built-in) 99 119.67 P
+0.41 0.06 ( lie outside the) 473.35 184.67 B
+(range of valid indexes \050such items don\325t exist so they aren\325t selected\051.) 99 171.67 T
+-0.35 (The semantics for an extended slicing are as follows. The primary must evaluate to a mapping object,) 99 146.67 P
+-0.01 (and it is indexed with a key that is constructed from the slice list, as follows. If the slice list contains) 99 133.67 P
+-0.42 (at least one comma, the key is a tuple containing the conversion of the slice items; otherwise, the con-) 99 120.67 P
+-0.39 (version of the lone slice item is the key. The conversion of a slice item that is an expression is that ex-) 99 107.67 P
+-0.38 (pression. The conversion of an ellipsis slice item is the built-in) 99 94.67 P
 2 F
--0.9 (Ellipsis) 373.53 119.67 P
+-0.9 (Ellipsis) 373.53 94.67 P
 1 F
--0.38 ( object. The conversion of) 426.33 119.67 P
--0.18 (a proper slice is a slice object \050see page) 99 106.67 P
--0.18 (17\051 whose) 273.78 106.67 P
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--0.44 (start) 321.68 106.67 P
-1 F
--0.18 (,) 354.68 106.67 P
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--0.44 (stop) 360 106.67 P
-1 F
--0.18 ( and) 386.4 106.67 P
-2 F
--0.44 (step) 407.42 106.67 P
-1 F
--0.18 ( attributes are the values) 433.82 106.67 P
--0.17 (of the expressions given as lower bound, upper bound and stride, respectively, substituting) 99 93.67 P
-2 F
--0.42 (None) 498.2 93.67 P
-1 F
--0.17 ( for) 524.6 93.67 P
-(missing expressions.) 99 80.67 T
+-0.38 ( object. The conversion of) 426.33 94.67 P
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "30" 36
@@ -8635,98 +8679,113 @@
 585 292.5 598.5 720 R
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
+1 11 Q
+-0.18 (a proper slice is a slice object \050see page) 99 712.67 P
+-0.18 (17\051 whose) 273.78 712.67 P
+2 F
+-0.44 (start) 321.68 712.67 P
+1 F
+-0.18 (,) 354.68 712.67 P
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+-0.44 (stop) 360 712.67 P
+1 F
+-0.18 ( and) 386.4 712.67 P
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+-0.44 (step) 407.42 712.67 P
+1 F
+-0.18 ( attributes are the values) 433.82 712.67 P
+-0.17 (of the expressions given as lower bound, upper bound and stride, respectively, substituting) 99 699.67 P
+2 F
+-0.42 (None) 498.2 699.67 P
+1 F
+-0.17 ( for) 524.6 699.67 P
+(missing expressions.) 99 686.67 T
 0 12 Q
-(5.3.4) 99 712 T
-(Calls) 144 712 T
+(5.3.4) 99 661 T
+(Calls) 144 661 T
 1 11 Q
-(A call calls a callable object \050e.g. a function\051 with a possibly empty series of arguments:) 99 692.67 T
+(A call calls a callable object \050e.g. a function\051 with a possibly empty series of arguments:) 99 641.67 T
 2 10 Q
-(call:                 primary "\050" [argument_list [","]] "\051") 99 674.33 T
-(argument_list:        positional_arguments ["," keyword_arguments]) 99 662.33 T
-(                    | keyword_arguments) 99 650.33 T
-(positional_arguments: expression \050"," expression\051*) 99 638.33 T
-(keyword_arguments:    keyword_item \050"," keyword_item\051*) 99 626.33 T
-(keyword_item:         identifier "=" expression) 99 614.33 T
+(call:                 primary "\050" [argument_list [","]] "\051") 99 623.33 T
+(argument_list:        positional_arguments ["," keyword_arguments]) 99 611.33 T
+(                    | keyword_arguments) 99 599.33 T
+(positional_arguments: expression \050"," expression\051*) 99 587.33 T
+(keyword_arguments:    keyword_item \050"," keyword_item\051*) 99 575.33 T
+(keyword_item:         identifier "=" expression) 99 563.33 T
 1 11 Q
-(A trailing comma may be present after an argument list but does not affect the semantics.) 99 589.67 T
--0.32 (The primary must evaluate to a callable object \050user-defined functions, built-in functions, methods of) 99 564.67 P
-0.22 (built-in objects, class objects, methods of class instances, and certain class instances themselves are) 99 551.67 P
--0.15 (callable; extensions may define additional callable object types\051.  All argument expressions are eval-) 99 538.67 P
--0.05 (uated before the call is attempted. Please refer to \322Function definitions\323 on page) 99 525.67 P
--0.05 (48 for the syntax of) 454.04 525.67 P
-(formal parameter lists.) 99 512.67 T
-0.08 (If keyword arguments are present, they are first converted to positional arguments, as follows. First,) 99 487.67 P
-0.3 (a list of unfilled slots is created for the formal parameters. If there are N positional arguments, they) 99 474.67 P
--0.47 (are placed in the first N slots. Next, for each keyword argument, the identifier is used to determine the) 99 461.67 P
-0.41 0.06 (corresponding slot \050if the identifier is the same as the first formal parameter name, the first slot is) 99 448.67 B
--0.16 (used, and so on\051. If the slot is already filled, a) 99 435.67 P
+(A trailing comma may be present after an argument list but does not affect the semantics.) 99 538.67 T
+-0.32 (The primary must evaluate to a callable object \050user-defined functions, built-in functions, methods of) 99 513.67 P
+0.22 (built-in objects, class objects, methods of class instances, and certain class instances themselves are) 99 500.67 P
+-0.15 (callable; extensions may define additional callable object types\051.  All argument expressions are eval-) 99 487.67 P
+-0.05 (uated before the call is attempted. Please refer to \322Function definitions\323 on page) 99 474.67 P
+-0.05 (50 for the syntax of) 454.04 474.67 P
+(formal parameter lists.) 99 461.67 T
+0.08 (If keyword arguments are present, they are first converted to positional arguments, as follows. First,) 99 436.67 P
+0.3 (a list of unfilled slots is created for the formal parameters. If there are N positional arguments, they) 99 423.67 P
+-0.47 (are placed in the first N slots. Next, for each keyword argument, the identifier is used to determine the) 99 410.67 P
+0.41 0.06 (corresponding slot \050if the identifier is the same as the first formal parameter name, the first slot is) 99 397.67 B
+-0.16 (used, and so on\051. If the slot is already filled, a) 99 384.67 P
 2 F
--0.38 (TypeError) 300.71 435.67 P
+-0.38 (TypeError) 300.71 384.67 P
 1 F
--0.16 ( exception is raised. Otherwise, the value) 360.11 435.67 P
--0.06 (of the argument is placed in the slot, filling it \050even if the expression is) 99 422.67 P
+-0.16 ( exception is raised. Otherwise, the value) 360.11 384.67 P
+-0.06 (of the argument is placed in the slot, filling it \050even if the expression is) 99 371.67 P
 2 F
--0.15 (None) 412.16 422.67 P
+-0.15 (None) 412.16 371.67 P
 1 F
--0.06 (, it fills the slot\051. When) 438.56 422.67 P
--0.52 (all arguments have been processed, the slots that are still unfilled are filled with the corresponding de-) 99 409.67 P
--0.38 (fault value from the function definition. \050Default values are calculated, once, when the function is de-) 99 396.67 P
-0.41 0.04 (fined; thus, a mutable object such as a list or dictionary used as default value will be shared by all) 99 383.67 B
--0.3 (calls that don\325t specify an argument value for the corresponding slot; this should usually be avoided.\051) 99 370.67 P
-0.41 0.08 (If there are any unfilled slots for which no default value is specified, a) 99 357.67 B
+-0.06 (, it fills the slot\051. When) 438.56 371.67 P
+-0.52 (all arguments have been processed, the slots that are still unfilled are filled with the corresponding de-) 99 358.67 P
+-0.38 (fault value from the function definition. \050Default values are calculated, once, when the function is de-) 99 345.67 P
+0.41 0.04 (fined; thus, a mutable object such as a list or dictionary used as default value will be shared by all) 99 332.67 B
+-0.3 (calls that don\325t specify an argument value for the corresponding slot; this should usually be avoided.\051) 99 319.67 P
+0.41 0.08 (If there are any unfilled slots for which no default value is specified, a) 99 306.67 B
 2 F
-0.99 0.08 (TypeError) 422.4 357.67 B
+0.99 0.08 (TypeError) 422.4 306.67 B
 1 F
-0.41 0.08 ( exception is) 482.56 357.67 B
-(raised. Otherwise, the list of filled slots is used as the argument list for the call.) 99 344.67 T
-0.27 (If there are more positional arguments than there are formal parameter slots, a) 99 319.67 P
+0.41 0.08 ( exception is) 482.56 306.67 B
+(raised. Otherwise, the list of filled slots is used as the argument list for the call.) 99 293.67 T
+0.27 (If there are more positional arguments than there are formal parameter slots, a) 99 268.67 P
 2 F
-0.64 (TypeError) 448.27 319.67 P
+0.64 (TypeError) 448.27 268.67 P
 1 F
-0.27 ( excep-) 507.67 319.67 P
-0.13 (tion is raised, unless a formal parameter using the syntax\324\324) 99 306.67 P
+0.27 ( excep-) 507.67 268.67 P
+0.13 (tion is raised, unless a formal parameter using the syntax\324\324) 99 255.67 P
 2 F
-0.31 (*identifier) 357.39 306.67 P
+0.31 (*identifier) 357.39 255.67 P
 1 F
-0.13 (\325\325 is present; in this case,) 429.99 306.67 P
--0.05 (that formal parameter receives a tuple containing the excess positional arguments \050or an empty tuple) 99 293.67 P
-(if there were no excess positional arguments\051.) 99 280.67 T
--0.3 (If any keyword argument does not correspond to a formal parameter name, a) 99 255.67 P
+0.13 (\325\325 is present; in this case,) 429.99 255.67 P
+-0.05 (that formal parameter receives a tuple containing the excess positional arguments \050or an empty tuple) 99 242.67 P
+(if there were no excess positional arguments\051.) 99 229.67 T
+-0.3 (If any keyword argument does not correspond to a formal parameter name, a) 99 204.67 P
 2 F
--0.72 (TypeError) 435.38 255.67 P
+-0.72 (TypeError) 435.38 204.67 P
 1 F
--0.3 ( exception) 494.78 255.67 P
--0.46 (is raised, unless a formal parameter using the syntax \324\324) 99 242.67 P
+-0.3 ( exception) 494.78 204.67 P
+-0.46 (is raised, unless a formal parameter using the syntax \324\324) 99 191.67 P
 2 F
--1.11 (**identifier) 334.95 242.67 P
+-1.11 (**identifier) 334.95 191.67 P
 1 F
--0.46 (\325\325 is present; in this case, that) 414.15 242.67 P
-0.41 0.12 (formal parameter receives a dictionary containing the excess keyword arguments \050using the key-) 99 229.67 B
--0.33 (words as keys and the argument values as corresponding values\051, or a \050new\051 empty dictionary if there) 99 216.67 P
-(were no excess keyword arguments.) 99 203.67 T
-0.41 0.01 (Formal parameters using the syntax \324\324) 99 178.67 B
+-0.46 (\325\325 is present; in this case, that) 414.15 191.67 P
+0.41 0.12 (formal parameter receives a dictionary containing the excess keyword arguments \050using the key-) 99 178.67 B
+-0.33 (words as keys and the argument values as corresponding values\051, or a \050new\051 empty dictionary if there) 99 165.67 P
+(were no excess keyword arguments.) 99 152.67 T
+0.41 0.01 (Formal parameters using the syntax \324\324) 99 127.67 B
 2 F
-0.99 0.01 (*identifier) 268.55 178.67 B
+0.99 0.01 (*identifier) 268.55 127.67 B
 1 F
-0.41 0.01 (\325\325 or \324\324) 341.26 178.67 B
+0.41 0.01 (\325\325 or \324\324) 341.26 127.67 B
 2 F
-0.99 0.01 (**identifier) 371.48 178.67 B
+0.99 0.01 (**identifier) 371.48 127.67 B
 1 F
-0.41 0.01 (\325\325 cannot be used as) 450.8 178.67 B
-0.41 0.25 (positional argument slots or as keyword argument names. Formal parameters using the syntax) 99 165.67 B
--0.14 (\324\324) 99 152.67 P
+0.41 0.01 (\325\325 cannot be used as) 450.8 127.67 B
+0.41 0.25 (positional argument slots or as keyword argument names. Formal parameters using the syntax) 99 114.67 B
+-0.14 (\324\324) 99 101.67 P
 2 F
--0.33 (\050sublist\051) 106.33 152.67 P
+-0.33 (\050sublist\051) 106.33 101.67 P
 1 F
--0.14 (\325\325 cannot be used as keyword argument names; the outermost sublist corresponds to a) 165.73 152.67 P
--0.18 (single unnamed argument slot, and the argument value is assigned to the sublist using the usual tuple) 99 139.67 P
-(assignment rules after all other parameter processing is done.) 99 126.67 T
-0.41 0.07 (A call always returns some value, possibly) 99 101.67 B
-2 F
-0.99 0.07 (None) 295.6 101.67 B
-1 F
-0.41 0.07 (, unless it raises an exception. How this value is) 322.28 101.67 B
-(computed depends on the type of the callable object.) 99 88.67 T
+-0.14 (\325\325 cannot be used as keyword argument names; the outermost sublist corresponds to a) 165.73 101.67 P
+-0.18 (single unnamed argument slot, and the argument value is assigned to the sublist using the usual tuple) 99 88.67 P
+(assignment rules after all other parameter processing is done.) 99 75.67 T
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "31" 37
@@ -8757,105 +8816,107 @@
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 1 11 Q
-(If it is:) 99 712.67 T
-4 F
-(a user-defined function:) 99 693.67 T
-1 F
--0.41 (the code block for the function is executed, passing it the argument list. The) 211.44 693.67 P
-0.3 (first thing the code block will do is bind the formal parameters to the arguments; this is de-) 135 680.67 P
-0.74 (scribed in section\322Function definitions\323 on page) 135 667.67 P
-0.74 (48. When the code block executes a) 354.38 667.67 P
+0.41 0.07 (A call always returns some value, possibly) 99 712.67 B
 2 F
-1.76 (re-) 520.2 667.67 P
-(turn) 135 654.67 T
+0.99 0.07 (None) 295.6 712.67 B
 1 F
-( statement, this specifies the return value of the function call.) 161.4 654.67 T
+0.41 0.07 (, unless it raises an exception. How this value is) 322.28 712.67 B
+(computed depends on the type of the callable object.) 99 699.67 T
+(If it is:) 99 674.67 T
 4 F
-(a built-in function or method:) 99 635.67 T
+(a user-defined function:) 99 655.67 T
 1 F
--0.17 (the result is up to the interpreter; see the library reference manual for) 238.95 635.67 P
-(the descriptions of built-in functions and methods.) 135 622.67 T
+-0.41 (the code block for the function is executed, passing it the argument list. The) 211.44 655.67 P
+0.3 (first thing the code block will do is bind the formal parameters to the arguments; this is de-) 135 642.67 P
+0.74 (scribed in section\322Function definitions\323 on page) 135 629.67 P
+0.74 (50. When the code block executes a) 354.38 629.67 P
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+1.76 (re-) 520.2 629.67 P
+(turn) 135 616.67 T
+1 F
+( statement, this specifies the return value of the function call.) 161.4 616.67 T
 4 F
-(a class object:) 99 603.67 T
+(a built-in function or method:) 99 597.67 T
 1 F
-(a new instance of that class is returned.) 164.37 603.67 T
+-0.17 (the result is up to the interpreter; see the library reference manual for) 238.95 597.67 P
+(the descriptions of built-in functions and methods.) 135 584.67 T
 4 F
-(a class instance method:) 99 584.67 T
+(a class object:) 99 565.67 T
 1 F
--0.57 (the corresponding user-defined function is called, with an argument list that) 212.35 584.67 P
-(is one longer than the argument list of the call. The instance becomes the first argument.) 135 571.67 T
+(a new instance of that class is returned.) 164.37 565.67 T
+4 F
+(a class instance method:) 99 546.67 T
+1 F
+-0.57 (the corresponding user-defined function is called, with an argument list that) 212.35 546.67 P
+(is one longer than the argument list of the call. The instance becomes the first argument.) 135 533.67 T
 0 14 Q
-(5.4) 99 544.67 T
-(The power operator) 135 544.67 T
+(5.4) 99 506.67 T
+(The power operator) 135 506.67 T
 1 11 Q
--0.32 (The power operator binds more tightly than unary operators on its left; it binds less tightly than unary) 99 515.67 P
-(operators on its right. The syntax is:) 99 502.67 T
+-0.32 (The power operator binds more tightly than unary operators on its left; it binds less tightly than unary) 99 477.67 P
+(operators on its right. The syntax is:) 99 464.67 T
 2 10 Q
-(power:         primary ["**" u_expr]) 99 484.33 T
+(power:         primary ["**" u_expr]) 99 446.33 T
 1 11 Q
--0.4 (Thus, in an unparenthesized sequence of power and unary operators, the operators are evaluated from) 99 459.67 P
-(right to left \050this does not constrain the evaluation order for the operands\051.) 99 446.67 T
--0.32 (The power operator has the same semantics as the built-in) 99 421.67 P
+-0.4 (Thus, in an unparenthesized sequence of power and unary operators, the operators are evaluated from) 99 421.67 P
+(right to left \050this does not constrain the evaluation order for the operands\051.) 99 408.67 T
+-0.32 (The power operator has the same semantics as the built-in) 99 383.67 P
 2 F
--0.76 (pow\050\051) 353.68 421.67 P
+-0.76 (pow\050\051) 353.68 383.67 P
 1 F
--0.32 ( function: it yields its left argument) 386.68 421.67 P
-0.41 0.05 (raised to the power of its right argument. The numeric arguments are first converted to a common) 99 408.67 B
--0.33 (type. The result type is that of the arguments after coercion; if the result is not expressible in that type) 99 395.67 P
--0.08 (\050as in raising an integer to a negative power, or a negative floating point number to a broken power\051,) 99 382.67 P
-(a) 99 369.67 T
+-0.32 ( function: it yields its left argument) 386.68 383.67 P
+0.41 0.05 (raised to the power of its right argument. The numeric arguments are first converted to a common) 99 370.67 B
+-0.33 (type. The result type is that of the arguments after coercion; if the result is not expressible in that type) 99 357.67 P
+-0.08 (\050as in raising an integer to a negative power, or a negative floating point number to a broken power\051,) 99 344.67 P
+(a) 99 331.67 T
 2 F
-(TypeError) 106.63 369.67 T
+(TypeError) 106.63 331.67 T
 1 F
-( exception is raised.) 166.03 369.67 T
+( exception is raised.) 166.03 331.67 T
 0 14 Q
-(5.5) 99 342.67 T
-(Unary arithmetic operations) 135 342.67 T
+(5.5) 99 304.67 T
+(Unary arithmetic operations) 135 304.67 T
 1 11 Q
-(All unary arithmetic \050and bit-wise\051 operations have the same priority:) 99 317.67 T
+(All unary arithmetic \050and bit-wise\051 operations have the same priority:) 99 279.67 T
 2 10 Q
-(u_expr:         power | "-" u_expr | "+" u_expr | "~" u_expr) 99 299.33 T
+(u_expr:         power | "-" u_expr | "+" u_expr | "~" u_expr) 99 261.33 T
 1 11 Q
-(The unary) 99 274.67 T
+(The unary) 99 236.67 T
 2 F
-("-") 146.65 274.67 T
+("-") 146.65 236.67 T
 1 F
-( \050minus\051 operator yields the negation of its numeric argument.) 166.45 274.67 T
-(The unary) 99 249.67 T
+( \050minus\051 operator yields the negation of its numeric argument.) 166.45 236.67 T
+(The unary) 99 211.67 T
 2 F
-("+") 146.65 249.67 T
+("+") 146.65 211.67 T
 1 F
-( \050plus\051 operator yields its numeric argument unchanged.) 166.45 249.67 T
-0.41 0.01 (The unary) 99 224.67 B
+( \050plus\051 operator yields its numeric argument unchanged.) 166.45 211.67 T
+0.41 0.01 (The unary) 99 186.67 B
 2 F
-0.99 0.01 ("~") 147.55 224.67 B
+0.99 0.01 ("~") 147.55 186.67 B
 1 F
-0.41 0.01 ( \050invert\051 operator yields the bit-wise inversion of its plain or long integer argument.) 167.37 224.67 B
-(The bit-wise inversion of) 99 211.67 T
+0.41 0.01 ( \050invert\051 operator yields the bit-wise inversion of its plain or long integer argument.) 167.37 186.67 B
+(The bit-wise inversion of) 99 173.67 T
 2 F
-(x) 212.65 211.67 T
+(x) 212.65 173.67 T
 1 F
-( is defined as) 219.25 211.67 T
+( is defined as) 219.25 173.67 T
 2 F
-(-\050x+1\051) 279.74 211.67 T
+(-\050x+1\051) 279.74 173.67 T
 1 F
-(. It only applies to integral numbers.) 319.34 211.67 T
-(In all three cases, if the argument does not have the proper type, a) 99 186.67 T
+(. It only applies to integral numbers.) 319.34 173.67 T
+(In all three cases, if the argument does not have the proper type, a) 99 148.67 T
 2 F
-(TypeError) 391.04 186.67 T
+(TypeError) 391.04 148.67 T
 1 F
-( exception is raised.) 450.44 186.67 T
+( exception is raised.) 450.44 148.67 T
 0 14 Q
-(5.6) 99 159.67 T
-(Binary arithmetic operations) 135 159.67 T
+(5.6) 99 121.67 T
+(Binary arithmetic operations) 135 121.67 T
 1 11 Q
-0.18 (The remaining binary arithmetic operations have the conventional priority levels. Note that some of) 99 134.67 P
-0.65 (these operations also apply to certain non-numeric types. Apart from the power operator, there are) 99 121.67 P
-(only two levels, one for multiplicative operators and one for additive operators:) 99 108.67 T
-2 10 Q
-(m_expr:         u_expr | m_expr "*" u_expr) 99 90.33 T
-(              | m_expr "/" u_expr | m_expr "%" u_expr) 99 78.33 T
-(a_expr:         m_expr | aexpr "+" m_expr | aexpr "-" m_expr) 99 66.33 T
+0.18 (The remaining binary arithmetic operations have the conventional priority levels. Note that some of) 99 96.67 P
+0.65 (these operations also apply to certain non-numeric types. Apart from the power operator, there are) 99 83.67 P
+(only two levels, one for multiplicative operators and one for additive operators:) 99 70.67 T
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "32" 38
@@ -8892,143 +8953,143 @@
 585 292.5 598.5 720 R
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-1 11 Q
--0.45 (The ") 99 712.67 P
-2 F
--1.08 (*) 122.89 712.67 P
-1 F
--0.45 (" \050multiplication\051 operator yields the product of its arguments. The arguments must either both) 129.49 712.67 P
--0.12 (be numbers, or one argument must be a plain integer and the other must be a sequence. In the former) 99 699.67 P
--0.29 (case, the numbers are converted to a common type and then multiplied together. In the latter case, se-) 99 686.67 P
-(quence repetition is performed; a negative repetition factor yields an empty sequence.) 99 673.67 T
--0.4 (The ") 99 648.67 P
-2 F
--0.95 (/) 122.95 648.67 P
-1 F
--0.4 (" \050division\051 operator yields the quotient of its arguments. The numeric arguments are first con-) 129.55 648.67 P
-0.04 (verted to a common type. Plain or long integer division yields an integer of the same type; the result) 99 635.67 P
--0.22 (is that of mathematical division with the \324floor\325 function applied to the result. Division by zero raises) 99 622.67 P
-(the) 99 609.67 T
-2 F
-(ZeroDivisionError) 115.19 609.67 T
-1 F
-( exception) 227.39 609.67 T
--0.47 (The ") 99 584.67 P
-2 F
--1.12 (%) 122.88 584.67 P
-1 F
--0.47 (" \050modulo\051 operator yields the remainder from the division of the first argument by the second.) 129.48 584.67 P
-0.41 0.21 (The numeric arguments are first converted to a common type. A zero right argument raises the) 99 571.67 B
-2 F
--0.63 (ZeroDivisionError) 99 558.67 P
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--0.26 ( exception. The arguments may be floating point numbers, e.g.) 211.2 558.67 P
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--0.63 (3.14%0.7) 487.2 558.67 P
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-0.16 (the same sign as its second operand \050or zero\051; the absolute value of the result is strictly smaller than) 99 532.67 P
-(the second operand.) 99 519.67 T
--0.4 (The integer division and modulo operators are connected by the following identity:) 99 494.67 P
-2 F
--0.95 (x == \050x/y\051*y) 462.7 494.67 P
-0.99 0.04 (+ \050x%y\051) 99 481.67 B
-1 F
-0.41 0.04 (. Integer division and modulo are also connected with the built-in function) 146.44 481.67 B
-2 F
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-0.41 0.04 (:) 536.9 481.67 B
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-1 F
-0.41 0.02 (. These identities don\325t hold for floating point and complex) 274.99 468.67 B
-(numbers; there a similar identity holds where) 99 455.67 T
-2 F
-(x/y) 300.95 455.67 T
-1 F
-( is replaced by) 320.75 455.67 T
-2 F
-(floor\050x/y\051) 387.34 455.67 T
-1 F
-(\051 or) 453.34 455.67 T
-2 F
-(floor\050\050x/y\051.real\051) 99 442.67 T
-1 F
-(, respectively.) 211.2 442.67 T
--0.54 (The) 99 417.67 P
-2 F
--1.3 ("+") 118.31 417.67 P
-1 F
--0.54 ( \050addition\051 operator yields the sum of its arguments. The arguments must either both be num-) 138.11 417.67 P
--0.23 (bers, or both sequences of the same type. In the former case, the numbers are converted to a common) 99 404.67 P
-(type and then added together. In the latter case, the sequences are concatenated.) 99 391.67 T
-0.41 0.05 (The) 99 366.67 B
-2 F
-0.99 0.05 ("-") 119.49 366.67 B
-1 F
-0.41 0.05 ( \050subtraction\051 operator yields the difference of its arguments. The numeric arguments are) 139.45 366.67 B
-(first converted to a common type.) 99 353.67 T
-0 14 Q
-(5.7) 99 326.67 T
-(Shifting operations) 135 326.67 T
-1 11 Q
-(The shifting operations have lower priority than the arithmetic operations:) 99 301.67 T
 2 10 Q
-(shift_expr:     a_expr | shift_expr \050 "<<" | ">>" \051 a_expr) 99 283.33 T
+(m_expr:         u_expr | m_expr "*" u_expr) 99 713.33 T
+(              | m_expr "/" u_expr | m_expr "%" u_expr) 99 701.33 T
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-0.36 (These operators accept plain or long integers as arguments. The arguments are converted to a com-) 99 258.67 P
-0.04 (mon type. They shift the first argument to the left or right by the number of bits given by the second) 99 245.67 P
-(argument.) 99 232.67 T
-0.2 (A right shift by) 99 207.67 P
-3 F
-0.2 (n) 170.07 207.67 P
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-0.48 (pow\0502,) 308.05 207.67 P
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 1 F
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-0.2 ( bits is defined as multi-) 432.98 207.67 P
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+-0.29 (case, the numbers are converted to a common type and then multiplied together. In the latter case, se-) 99 638.67 P
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 2 F
--0.83 (pow\0502,) 161.87 194.67 P
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--0.34 (n\051; for plain integers there is no overflow check so this drops bits and flips the) 201.47 194.67 P
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+-0.22 (is that of mathematical division with the \324floor\325 function applied to the result. Division by zero raises) 99 574.67 P
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 2 F
-0.46 (pow\0502,31\051) 242.3 181.67 P
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 1 F
-0.19 ( in absolute value. Negative shift counts raise a) 301.7 181.67 P
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 2 F
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-(ueError) 99 168.67 T
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 1 F
-( exception.) 145.2 168.67 T
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+0.16 (the same sign as its second operand \050or zero\051; the absolute value of the result is strictly smaller than) 99 484.67 P
+(the second operand.) 99 471.67 T
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+0.41 0.02 (. These identities don\325t hold for floating point and complex) 274.99 420.67 B
+(numbers; there a similar identity holds where) 99 407.67 T
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+(x/y) 300.95 407.67 T
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+( is replaced by) 320.75 407.67 T
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+(floor\050x/y\051) 387.34 407.67 T
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+(floor\050\050x/y\051.real\051) 99 394.67 T
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+(, respectively.) 211.2 394.67 T
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+(type and then added together. In the latter case, the sequences are concatenated.) 99 343.67 T
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+0.99 0.05 ("-") 119.49 318.67 B
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+0.41 0.05 ( \050subtraction\051 operator yields the difference of its arguments. The numeric arguments are) 139.45 318.67 B
+(first converted to a common type.) 99 305.67 T
 0 14 Q
-(5.8) 99 141.67 T
-(Binary bit-wise operations) 135 141.67 T
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 1 11 Q
-(Each of the three bitwise operations has a different priority level:) 99 116.67 T
+(The shifting operations have lower priority than the arithmetic operations:) 99 253.67 T
 2 10 Q
-(and_expr:       shift_expr | and_expr "&" shift_expr) 99 98.33 T
-(xor_expr:       and_expr | xor_expr "^" and_expr) 99 86.33 T
-(or_expr:       xor_expr | or_expr "|" xor_expr) 99 74.33 T
+(shift_expr:     a_expr | shift_expr \050 "<<" | ">>" \051 a_expr) 99 235.33 T
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+0.04 (mon type. They shift the first argument to the left or right by the number of bits given by the second) 99 197.67 P
+(argument.) 99 184.67 T
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+0.2 (n) 170.07 159.67 P
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+0.46 (Val-) 513.6 133.67 P
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+( exception.) 145.2 120.67 T
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 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "33" 39
@@ -9058,206 +9119,203 @@
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
+2 F
+(and_expr:       shift_expr | and_expr "&" shift_expr) 76.5 713.33 T
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 1 11 Q
-0.41 0.03 (The) 76.5 712.67 B
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 2 F
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 1 F
-0.41 0.03 ( operator yields the bit-wise AND of its arguments, which must be plain or long integers.) 116.77 712.67 B
-(The arguments are converted to a common type.) 76.5 699.67 T
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+0.41 0.03 ( operator yields the bit-wise AND of its arguments, which must be plain or long integers.) 116.77 664.67 B
+(The arguments are converted to a common type.) 76.5 651.67 T
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 2 F
-0.99 0 ("^") 96.77 674.67 B
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 1 F
-0.41 0 ( operator yields the bitwise XOR \050exclusive OR\051 of its arguments, which must be plain or) 116.57 674.67 B
-(long integers. The arguments are converted to a common type.) 76.5 661.67 T
--0.17 (The) 76.5 636.67 P
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 2 F
--0.41 ("|") 96.19 636.67 P
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 1 F
--0.17 ( operator yields the bitwise \050inclusive\051 OR of its arguments, which must be plain or long in-) 115.99 636.67 P
-(tegers. The arguments are converted to a common type.) 76.5 623.67 T
+-0.17 ( operator yields the bitwise \050inclusive\051 OR of its arguments, which must be plain or long in-) 115.99 588.67 P
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 0 14 Q
-(5.9) 76.5 596.67 T
-(Comparisons) 112.5 596.67 T
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 1 11 Q
-0.26 (Contrary to C, all comparison operations in Python have the same priority, which is lower than that) 76.5 571.67 P
-0.47 (of any arithmetic, shifting or bitwise operation. Also contrary to C, expressions like) 76.5 558.67 P
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 2 F
-1.13 (a < b < c) 453.56 558.67 P
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 1 F
-(have the interpretation that is conventional in mathematics:) 76.5 545.67 T
+(have the interpretation that is conventional in mathematics:) 76.5 497.67 T
 2 10 Q
-(comparison:     or_expr \050comp_operator or_expr\051*) 76.5 527.33 T
--1.8 (comp_operator:  "<"|">"|"=="|">="|"<="|"<>"|"!="|"is" ["not"]|["not"] "in") 76.5 515.33 P
+(comparison:     or_expr \050comp_operator or_expr\051*) 76.5 479.33 T
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 1 11 Q
-(Comparisons yield integer values: 1 for true, 0 for false.) 76.5 490.67 T
--0.2 (Comparisons can be chained arbitrarily, e.g.) 76.5 465.67 P
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 2 F
--0.49 (x < y <= z) 272.31 465.67 P
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--0.2 ( is equivalent to) 336.35 465.67 P
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--0.49 (x < y and y <= z,) 408.25 465.67 P
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--0.14 (except that) 76.5 452.67 P
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--0.35 (y) 126.92 452.67 P
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--0.14 ( is evaluated only once \050but in both cases) 133.52 452.67 P
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--0.35 (z) 315.83 452.67 P
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 1 F
--0.14 ( is not evaluated at all when) 322.43 452.67 P
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 2 F
--0.35 (x < y) 446.98 452.67 P
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--0.14 ( is found) 479.29 452.67 P
-(to be false\051.) 76.5 439.67 T
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--0.31 (a) 131.18 414.67 P
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--0.31 (,) 136.68 414.67 P
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--0.31 (b) 141.87 414.67 P
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--0.31 (,) 147.37 414.67 P
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--0.31 (c) 152.56 414.67 P
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--0.31 (, ...,) 157.44 414.67 P
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--0.31 (y) 176.06 414.67 P
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--0.31 (,) 180.95 414.67 P
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--0.31 (,) 297.3 414.67 P
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--0.31 (, ...,) 318.99 414.67 P
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--0.31 (opy) 337.61 414.67 P
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--0.31 ( are comparison operators, then) 353.5 414.67 P
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--0.31 (a opa) 493.06 414.67 P
-0.05 (b opb c) 76.5 401.67 P
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 1 F
-0.05 ( is equivalent to) 153.47 401.67 P
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 3 F
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 2 F
-0.12 (and) 262.27 401.67 P
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 3 F
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 2 F
-0.12 (and) 324.06 401.67 P
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 1 F
-0.05 ( ...) 343.86 401.67 P
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 3 F
-0.05 (y opy z) 360.51 401.67 P
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 1 F
-0.05 (, except that each expression) 391.15 401.67 P
-(is evaluated at most once.) 76.5 388.67 T
-0.18 (Note that) 76.5 363.67 P
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 3 F
-0.18 (a opa b opb c) 120.24 363.67 P
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 1 F
-0.18 ( doesn\325t imply any kind of comparison between) 180.84 363.67 P
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 3 F
-0.18 (a) 394.9 363.67 P
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 1 F
-0.18 ( and) 400.4 363.67 P
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 3 F
-0.18 (c) 422.14 363.67 P
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 1 F
-0.18 (, so that e.g.) 427.02 363.67 P
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 2 F
-0.43 (x < y) 483.65 363.67 P
-(> z) 76.5 350.67 T
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 1 F
-( is perfectly legal \050though perhaps not pretty\051.) 96.3 350.67 T
--0.27 (The forms) 76.5 325.67 P
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 2 F
--0.66 (<>) 124.22 325.67 P
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 1 F
--0.27 ( and) 137.42 325.67 P
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 2 F
--0.66 (!=) 158.25 325.67 P
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 1 F
--0.27 ( are equivalent; for consistency with C,) 171.45 325.67 P
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 2 F
--0.66 (!=) 344.89 325.67 P
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 1 F
--0.27 ( is preferred; where) 358.1 325.67 P
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 2 F
--0.66 (!=) 445.57 325.67 P
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 1 F
--0.27 ( is mentioned) 458.77 325.67 P
-(below) 76.5 312.67 T
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 2 F
-(<>) 106.13 312.67 T
+(<>) 106.13 264.67 T
 1 F
-( is also implied.) 119.33 312.67 T
--0.01 (The operators) 76.5 287.67 P
+( is also implied.) 119.33 264.67 T
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 2 F
--0.02 ("<", ">", "==", ">=", "<=") 140.02 287.67 P
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 1 F
--0.01 (, and) 311.54 287.67 P
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 2 F
--0.02 ("!=") 335.65 287.67 P
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 1 F
--0.01 ( compare the values of two objects.) 362.05 287.67 P
-0.25 (The objects needn\325t have the same type. If both are numbers, they are converted to a common type.) 76.5 274.67 P
--0.03 (Otherwise, objects of different types) 76.5 261.67 P
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 3 F
--0.03 (always) 239.46 261.67 P
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 1 F
--0.03 ( compare unequal, and are ordered consistently but arbi-) 270.02 261.67 P
-0.41 0.05 (trarily. \050This unusual definition of comparison is done to simplify the definition of operations like) 76.5 248.67 B
-(sorting and the) 76.5 235.67 T
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 2 F
-(in) 144.63 235.67 T
+(in) 144.63 187.67 T
 1 F
-( and) 157.83 235.67 T
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 2 F
-(not) 179.22 235.67 T
-(in) 201.77 235.67 T
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+(in) 201.77 187.67 T
 1 F
-( operators.\051) 214.97 235.67 T
-(Comparison of objects of the same type depends on the type:) 76.5 210.67 T
-(\245) 76.5 191.67 T
-(Numbers are compared arithmetically.) 90.9 191.67 T
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-(Tuples and lists are compared lexicographically using comparison of corresponding items.) 90.9 140.67 T
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--0.38 (Mappings \050dictionaries\051 are compared through lexicographic comparison of their sorted \050key, val-) 90.9 121.67 P
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 FMENDPAGE
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 1 8.8 Q
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-( yields the inverse truth value.) 186.25 610.67 T
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-(Boolean operations have the lowest priority of all Python operations:) 99 558.67 T
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--0.23 (In the context of Boolean operations, and also when expressions are used by control flow statements,) 99 467.67 P
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-0.25 (y) 479.62 391.67 P
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-(and the resulting value is returned.) 99 378.67 T
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--0.18 (x) 168.3 353.67 P
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--0.43 (or) 175.75 353.67 P
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--0.18 (y) 191.52 353.67 P
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--0.18 ( first evaluates) 196.41 353.67 P
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--0.18 (x) 262.78 353.67 P
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--0.18 (; if) 267.66 353.67 P
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--0.18 (x) 282.58 353.67 P
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--0.18 ( is true, its value is returned; otherwise,) 287.47 353.67 P
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--0.18 (y) 462.02 353.67 P
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--0.18 ( is evaluated and) 466.91 353.67 P
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-( yields) 158.4 263.67 T
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-(0) 190.18 263.67 T
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@@ -9549,7 +9613,7 @@
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 FMENDPAGE
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--0.07 (Assignment is defined recursively depending on the form of the target \050list\051. When a target is part of a mu-) 72 517.67 P
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--0.18 (table object \050an attribute reference, subscription or slicing\051, the mutable object must ultimately perform the) 72 504.67 P
+-0.18 (table object \050an attribute reference, subscription or slicing\051, the mutable object must ultimately perform the) 72 453.67 P
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--0.27 (assignment and decide about its validity, and may raise an exception if the assignment is unacceptable. The) 72 491.67 P
+-0.27 (assignment and decide about its validity, and may raise an exception if the assignment is unacceptable. The) 72 440.67 P
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 0 0 0 1 0 0 0 K
-0.27 (rules observed by various types and the exceptions raised are given with the definition of the object types) 72 478.67 P
+0.27 (rules observed by various types and the exceptions raised are given with the definition of the object types) 72 427.67 P
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-(\050See \322The standard type hierarchy\323 on page) 72 465.67 T
-(12.\051) 267.18 465.67 T
+(\050See \322The standard type hierarchy\323 on page) 72 414.67 T
+(12.\051) 267.18 414.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(Assignment of an object to a target list is recursively defined as follows.) 72 440.67 T
+(Assignment of an object to a target list is recursively defined as follows.) 72 389.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 421.67 T
+(\245) 72 370.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(If the target list is a single target: the object is assigned to that target.) 86.4 421.67 T
+(If the target list is a single target: the object is assigned to that target.) 86.4 370.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 402.67 T
+(\245) 72 351.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.14 (If the target list is a comma-separated list of targets: the object must be a tuple with the same number of) 86.4 402.67 P
+-0.49 (If the target list is a comma-separated list of targets: the object must be a sequence with the same number) 86.4 351.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.62 (items as there are targets in the target list, and the items are assigned, from left to right, to the correspond-) 86.4 389.67 P
+0.1 (of items as there are targets in the target list, and the items are assigned, from left to right, to the corre-) 86.4 338.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(ing targets.) 86.4 376.67 T
+-0.17 (sponding targets. \050This rule has been relaxed since Python 1.5; in earlier versions, the object had to be a) 86.4 325.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(Assignment of an object to a single target is recursively defined as follows.) 72 351.67 T
+(tuple. Since strings are sequences, an assignment like \322) 86.4 312.67 T
+2 10 Q
+(a, b = "xy") 328.97 312.67 T
+1 11 Q
+(\323 is now legal.\051) 394.97 312.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 332.67 T
+(Assignment of an object to a single target is recursively defined as follows.) 72 287.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(If the target is an identifier \050name\051:) 86.4 332.67 T
+(\245) 72 268.67 T
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-(\245) 100.8 313.67 T
+(If the target is an identifier \050name\051:) 86.4 268.67 T
 0 0 0 1 0 0 0 K
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-0.19 (If the name does not occur in a) 115.2 313.67 P
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+0.19 (If the name does not occur in a) 115.2 249.67 P
 2 F
-0.44 (global) 255.37 313.67 P
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 1 F
-0.19 ( statement in the current code block: the name is bound) 294.96 313.67 P
+0.19 ( statement in the current code block: the name is bound) 294.96 249.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(to the object in the current local name space.) 115.2 300.67 T
+(to the object in the current local name space.) 115.2 236.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 100.8 281.67 T
+(\245) 100.8 217.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(Otherwise: the name is bound to the object in the current global name space.) 115.2 281.67 T
+(Otherwise: the name is bound to the object in the current global name space.) 115.2 217.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.58 (The name is rebound if it was already bound. This can cause the reference count for the object previously) 86.4 264.67 P
+-0.58 (The name is rebound if it was already bound. This can cause the reference count for the object previously) 86.4 200.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(bound to the name to reach zero, causing the object to be deallocated and its) 86.4 251.67 T
+(bound to the name to reach zero, causing the object to be deallocated and its) 86.4 187.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 232.67 T
+(\245) 72 168.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.16 (If the target is a target list enclosed in parentheses: the object is assigned to that target list as described) 86.4 232.67 P
+-0.42 (If the target is a target list enclosed in parentheses or square brackets: the object must be a sequence with) 86.4 168.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(above.) 86.4 219.67 T
+-0.22 (the same number of items there are targets in the target list, and its items are assigned, from left to right,) 86.4 155.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 200.67 T
+(to the corresponding targets.) 86.4 142.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.24 (If the target is a target list enclosed in square brackets: the object must be a list with the same number of) 86.4 200.67 P
+(\245) 72 123.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.38 (items as the target list contains targets, and its items are assigned, from left to right, to the corresponding) 86.4 187.67 P
+-0.56 (If the target is an attribute reference: The primary expression in the reference is evaluated. It should yield) 86.4 123.67 P
 0 0 0 1 0 0 0 K
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-(targets.) 86.4 174.67 T
-0 0 0 1 0 0 0 K
-0 0 0 1 0 0 0 K
-(\245) 72 155.67 T
-0 0 0 1 0 0 0 K
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--0.56 (If the target is an attribute reference: The primary expression in the reference is evaluated. It should yield) 86.4 155.67 P
-0 0 0 1 0 0 0 K
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-0.7 (an object with assignable attributes; if this is not the case,) 86.4 142.67 P
+0.7 (an object with assignable attributes; if this is not the case,) 86.4 110.67 P
 2 F
-1.69 (TypeError) 350.19 142.67 P
+1.69 (TypeError) 350.19 110.67 P
 1 F
-0.7 ( is raised. That object is then) 409.59 142.67 P
+0.7 ( is raised. That object is then) 409.59 110.67 P
 0 0 0 1 0 0 0 K
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--0.34 (asked to assign the assigned object to the given attribute; if it cannot perform the assignment, it raises an) 86.4 129.67 P
+-0.34 (asked to assign the assigned object to the given attribute; if it cannot perform the assignment, it raises an) 86.4 97.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(exception \050usually but not necessarily) 86.4 116.67 T
+(exception \050usually but not necessarily) 86.4 84.67 T
 2 F
-(AttributeError) 255.35 116.67 T
+(AttributeError) 255.35 84.67 T
 1 F
-(\051.) 347.75 116.67 T
-0 0 0 1 0 0 0 K
-0 0 0 1 0 0 0 K
-(\245) 72 97.67 T
-0 0 0 1 0 0 0 K
-0 0 0 1 0 0 0 K
--0.31 (If the target is a subscription: The primary expression in the reference is evaluated. It should yield either) 86.4 97.67 P
-0 0 0 1 0 0 0 K
-0 0 0 1 0 0 0 K
--0.25 (a mutable sequence \050list\051 object or a mapping \050dictionary\051 object. Next, the subscript expression is eval-) 86.4 84.67 P
+(\051.) 347.75 84.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
@@ -10352,86 +10416,92 @@
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 1 11 Q
-(uated.) 113.4 712.67 T
--0.11 (If the primary is a mutable sequence object \050a list\051, the subscript must yield a plain integer. If it is) 113.4 695.67 P
-0.31 (negative, the sequence\325s length is added to it. The resulting value must be a nonnegative integer) 113.4 682.67 P
--0.14 (less than the sequence\325s length, and the sequence is asked to assign the assigned object to its item) 113.4 669.67 P
-0 (with that index. If the index is out of range,) 113.4 656.67 P
+(\245) 99 712.67 T
+-0.28 (If the target is a subscription: The primary expression in the reference is evaluated. It should yield) 113.4 712.67 P
+-0.33 (either a mutable sequence object \050e.g. a list\051 or a mapping object \050e.g. a dictionary\051. Next, the sub-) 113.4 699.67 P
+(script expression is evaluated.) 113.4 686.67 T
+-0.09 (If the primary is a mutable sequence object \050e.g. a list\051, the subscript must yield a plain integer. If) 113.4 669.67 P
+-0.23 (it is negative, the sequence\325s length is added to it. The resulting value must be a nonnegative inte-) 113.4 656.67 P
+0.19 (ger less than the sequence\325s length, and the sequence is asked to assign the assigned object to its) 113.4 643.67 P
+0.53 (item with that index. If the index is out of range,) 113.4 630.67 P
 2 F
-0.01 (IndexError) 307.15 656.67 P
+1.26 (IndexError) 335.19 630.67 P
 1 F
-0 ( is raised \050assignment to a subscripted) 373.15 656.67 P
-(sequence cannot add new items to a list\051.) 113.4 643.67 T
--0.4 (If the primary is a mapping \050dictionary\051 object, the subscript must have a type compatible with the) 113.4 626.67 P
--0.53 (mapping\325s key type, and the mapping is then asked to create a key/datum pair which maps the sub-) 113.4 613.67 P
-0.03 (script to the assigned object. This can either replace an existing key/value pair with the same key) 113.4 600.67 P
-(value, or insert a new key/value pair \050if no key with the same value existed\051.) 113.4 587.67 T
-(\245) 99 568.67 T
--0.45 (If the target is a slicing: The primary expression in the reference is evaluated. It should yield a mu-) 113.4 568.67 P
-0.68 (table sequence object \050e.g. a list\051. The assigned object should be a sequence object of the same) 113.4 555.67 P
--0.49 (type. Next, the lower and upper bound expressions are evaluated, insofar they are present; defaults) 113.4 542.67 P
--0.46 (are zero and the sequence\325s length. The bounds should evaluate to \050small\051 integers. If either bound) 113.4 529.67 P
-0.35 (is negative, the sequence\325s length is added to it. The resulting bounds are clipped to lie between) 113.4 516.67 P
--0.32 (zero and the sequence\325s length, inclusive. Finally, the sequence object is asked to replace the slice) 113.4 503.67 P
-0.15 (with the items of the assigned sequence. The length of the slice may be different from the length) 113.4 490.67 P
-(of the assigned sequence, thus changing the length of the target sequence, if the object allows it.) 113.4 477.67 T
-0.15 (\050In the current implementation, the syntax for targets is taken to be the same as for expressions, and) 99 452.67 P
-(invalid syntax is rejected during the code generation phase, causing less detailed error messages.\051) 99 439.67 T
-0.14 (WARNING: Although the definition of assignment implies that overlaps between the left-hand side) 99 414.67 P
--0.28 (and the right-hand side are \324safe\325 \050e.g. \324\324) 99 401.67 P
+0.53 ( is raised \050assignment to a sub-) 401.19 630.67 P
+(scripted sequence cannot add new items to a list\051.) 113.4 617.67 T
+0.37 (If the primary is a mapping object \050e.g. a dictionary\051, the subscript must have a type compatible) 113.4 600.67 P
+-0.57 (with the mapping\325s key type, and the mapping is then asked to create a key/datum pair which maps) 113.4 587.67 P
+0.86 (the subscript to the assigned object. This can either replace an existing key/value pair with the) 113.4 574.67 P
+(same key value, or insert a new key/value pair \050if no key with the same value existed\051.) 113.4 561.67 T
+(\245) 99 542.67 T
+-0.45 (If the target is a slicing: The primary expression in the reference is evaluated. It should yield a mu-) 113.4 542.67 P
+0.68 (table sequence object \050e.g. a list\051. The assigned object should be a sequence object of the same) 113.4 529.67 P
+-0.49 (type. Next, the lower and upper bound expressions are evaluated, insofar they are present; defaults) 113.4 516.67 P
+-0.46 (are zero and the sequence\325s length. The bounds should evaluate to \050small\051 integers. If either bound) 113.4 503.67 P
+0.35 (is negative, the sequence\325s length is added to it. The resulting bounds are clipped to lie between) 113.4 490.67 P
+-0.32 (zero and the sequence\325s length, inclusive. Finally, the sequence object is asked to replace the slice) 113.4 477.67 P
+0.15 (with the items of the assigned sequence. The length of the slice may be different from the length) 113.4 464.67 P
+(of the assigned sequence, thus changing the length of the target sequence, if the object allows it.) 113.4 451.67 T
+0.15 (\050In the current implementation, the syntax for targets is taken to be the same as for expressions, and) 99 426.67 P
+(invalid syntax is rejected during the code generation phase, causing less detailed error messages.\051) 99 413.67 T
+4 F
+-0.51 (Warning:) 99 388.67 P
+1 F
+-0.51 ( Although the definition of assignment implies that overlaps between the left-hand side and) 144.84 388.67 P
+0.04 (the right-hand side are \324safe\325 \050e.g. \324\324) 99 375.67 P
 2 F
--0.68 (a,) 274.49 401.67 P
--0.68 (b) 290.16 401.67 P
--0.68 (=) 299.23 401.67 P
--0.68 (b,) 308.3 401.67 P
--0.68 (a) 323.96 401.67 P
+0.1 (a,) 258.09 375.67 P
+0.1 (b) 274.08 375.67 P
+0.1 (=) 283.48 375.67 P
+0.1 (b,) 292.87 375.67 P
+0.1 (a) 308.86 375.67 P
 1 F
--0.28 (\325\325 swaps two variables\051, overlaps) 330.56 401.67 P
+0.04 (\325\325 swaps two variables\051, overlaps) 315.46 375.67 P
 3 F
--0.28 (within) 477.01 401.67 P
+0.04 (within) 463.53 375.67 P
 1 F
--0.28 ( the col-) 504.52 401.67 P
--0.19 (lection of assigned-to variables are not safe! For instance, the following program prints \324\324) 99 388.67 P
+0.04 ( the collec-) 491.04 375.67 P
+(tion of assigned-to variables are not safe! For instance, the following program prints \324\324) 99 362.67 T
 2 F
--0.46 ([0,) 490.02 388.67 P
--0.46 (2]) 516.42 388.67 P
+([0,) 479.65 362.67 T
+(2]) 506.05 362.67 T
 1 F
--0.19 (\325\325:) 529.62 388.67 P
+(\325\325:) 519.26 362.67 T
 2 10 Q
-(x = [0, 1]) 99 370.33 T
-(i = 0) 99 358.33 T
-(i, x[i] = 1, 2) 99 346.33 T
-(print x) 99 334.33 T
+(x = [0, 1]) 99 344.33 T
+(i = 0) 99 332.33 T
+(i, x[i] = 1, 2) 99 320.33 T
+(print x) 99 308.33 T
 0 14 Q
-(6.4) 99 307.67 T
-(The) 135 307.67 T
+(6.4) 99 281.67 T
+(The) 135 281.67 T
 2 F
-(pass) 163.78 307.67 T
+(pass) 163.78 281.67 T
 0 F
-( statement) 197.38 307.67 T
+( statement) 197.38 281.67 T
 2 10 Q
-(pass_stmt:      "pass") 99 283.33 T
+(pass_stmt:      "pass") 99 257.33 T
 2 11 Q
-0.21 (pass) 99 258.67 P
+0.21 (pass) 99 232.67 P
 1 F
-0.09 ( is a null operation \321 when it is executed, nothing happens. It is useful as a placeholder when) 125.4 258.67 P
-(a statement is required syntactically, but no code needs to be executed, for example:) 99 245.67 T
+0.09 ( is a null operation \321 when it is executed, nothing happens. It is useful as a placeholder when) 125.4 232.67 P
+(a statement is required syntactically, but no code needs to be executed, for example:) 99 219.67 T
 2 10 Q
-(def f\050arg\051: pass    # a function that does nothing \050yet\051) 99 227.33 T
-(class C: pass       # a class with no methods \050yet\051) 99 215.33 T
+(def f\050arg\051: pass    # a function that does nothing \050yet\051) 99 201.33 T
+(class C: pass       # a class with no methods \050yet\051) 99 189.33 T
 0 14 Q
-(6.5) 99 188.67 T
-(The) 135 188.67 T
+(6.5) 99 162.67 T
+(The) 135 162.67 T
 2 F
-(del) 163.78 188.67 T
+(del) 163.78 162.67 T
 0 F
-( statement) 188.98 188.67 T
+( statement) 188.98 162.67 T
 2 10 Q
-(del_stmt:       "del" target_list) 99 164.33 T
+(del_stmt:       "del" target_list) 99 138.33 T
 1 11 Q
-0.19 (Deletion is recursively defined very similar to the way assignment is defined. Rather that spelling it) 99 139.67 P
-(out in full details, here are some hints.) 99 126.67 T
-(Deletion of a target list recursively deletes each target, from left to right.) 99 101.67 T
+0.19 (Deletion is recursively defined very similar to the way assignment is defined. Rather that spelling it) 99 113.67 P
+(out in full details, here are some hints.) 99 100.67 T
+(Deletion of a target list recursively deletes each target, from left to right.) 99 75.67 T
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "41" 47
@@ -10539,125 +10609,142 @@
 0.36 ( statement ends with a comma. This is the only) 330.21 469.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.54 (action if the statement contains just the keyword) 72 456.67 P
+0.41 0.02 (action if the statement contains just the keyword) 72 456.67 B
 2 F
--1.3 (print) 283.36 456.67 P
+0.99 0.02 (print) 291.78 456.67 B
 1 F
--0.54 (. Standard output is defined as the file object named) 316.36 456.67 P
+0.41 0.02 (. Standard output is defined as the object named) 324.86 456.67 B
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 2 F
--0.69 (stdout) 72 443.67 P
+0.63 (stdout) 72 443.67 P
 1 F
--0.29 (in the built-in module) 117.5 443.67 P
+0.26 (in the built-in module) 118.83 443.67 P
 2 F
--0.69 (sys) 214.74 443.67 P
+0.63 (sys) 218.27 443.67 P
 1 F
--0.29 (. If no such object exists, or if it is not a writable file, a) 234.54 443.67 P
+0.26 (. If no such object exists, or if it does not have a) 238.07 443.67 P
 2 F
--0.69 (RuntimeEr-) 474 443.67 P
-0 0 0 1 0 0 0 K
-0 0 0 1 0 0 0 K
-0.99 0 (ror) 72 430.67 B
+0.63 (write\050\051) 455.04 443.67 P
 1 F
-0.41 0 ( exception is raised. \050The original implementation attempts to write to the system\325s original standard) 91.81 430.67 B
+0.26 ( method,) 501.24 443.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(output instead, but this is not safe, and should be fixed.\051) 72 417.67 T
+(an exception is raised.) 72 430.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 0 14 Q
-(6.7) 72 390.67 T
+(6.7) 72 403.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(The) 108 390.67 T
+(The) 108 403.67 T
 2 F
-(return) 136.78 390.67 T
+(return) 136.78 403.67 T
 0 F
-( statement) 187.18 390.67 T
+( statement) 187.18 403.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 2 10 Q
-(return_stmt:    "return" [expression_list]) 72 366.33 T
+(return_stmt:    "return" [expression_list]) 72 379.33 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 2 11 Q
-(return) 72 341.67 T
+(return) 72 354.67 T
 1 F
-( may only occur syntactically nested in a function definition, not within a nested class definition.) 111.6 341.67 T
+( may only occur syntactically nested in a function definition, not within a nested class definition.) 111.6 354.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(If an expression list is present, it is evaluated, else) 72 316.67 T
+(If an expression list is present, it is evaluated, else) 72 329.67 T
 2 F
-(None) 295.02 316.67 T
+(None) 295.02 329.67 T
 1 F
-(is substituted.) 328.02 316.67 T
+(is substituted.) 328.02 329.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 2 F
-(return) 72 291.67 T
+(return) 72 304.67 T
 1 F
-( leaves the current function call with the expression list \050or) 111.6 291.67 T
+( leaves the current function call with the expression list \050or) 111.6 304.67 T
 2 F
-(None) 372.81 291.67 T
+(None) 372.81 304.67 T
 1 F
-(\051 as return value.) 399.21 291.67 T
+(\051 as return value.) 399.21 304.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.36 (When) 72 266.67 P
+0.36 (When) 72 279.67 P
 2 F
-0.87 (return) 101.38 266.67 P
+0.87 (return) 101.38 279.67 P
 1 F
-0.36 ( passes control out of a) 140.98 266.67 P
+0.36 ( passes control out of a) 140.98 279.67 P
 2 F
-0.87 (try) 247.04 266.67 P
+0.87 (try) 247.04 279.67 P
 1 F
-0.36 ( statement with a) 266.84 266.67 P
+0.36 ( statement with a) 266.84 279.67 P
 2 F
-0.87 (finally) 345.9 266.67 P
+0.87 (finally) 345.9 279.67 P
 1 F
-0.36 ( clause, that finally clause is exe-) 392.1 266.67 P
+0.36 ( clause, that finally clause is exe-) 392.1 279.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(cuted before really leaving the function.) 72 253.67 T
+(cuted before really leaving the function.) 72 266.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 0 14 Q
-(6.8) 72 226.67 T
+(6.8) 72 239.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(The) 108 226.67 T
+(The) 108 239.67 T
 2 F
-(raise) 136.78 226.67 T
+(raise) 136.78 239.67 T
 0 F
-( statement) 178.78 226.67 T
+( statement) 178.78 239.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 2 10 Q
-(raise_stmt:     "raise" expression ["," expression ["," expression]]) 72 202.33 T
+(raise_stmt:     "raise" expression ["," expression ["," expression]]) 72 215.33 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 2 11 Q
--0.98 (raise) 72 177.67 P
+-0.98 (raise) 72 190.67 P
 1 F
--0.41 ( evaluates its first expression, which must yield a string, class, or instance object. If there is a second) 105 177.67 P
+-0.41 ( evaluates its first expression, which must yield a string, class, or instance object. If there is a second) 105 190.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.02 (expression, this is evaluated, else) 72 164.67 P
+0.02 (expression, this is evaluated, else) 72 177.67 P
 2 F
-0.06 (None) 220.91 164.67 P
+0.06 (None) 220.91 177.67 P
 1 F
-0.02 ( is substituted. If the first expression is a class object, then the sec-) 247.31 164.67 P
+0.02 ( is substituted. If the first expression is a class object, then the sec-) 247.31 177.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.54 (ond expression must be an instance of that class or one of its derivatives. If the first expression is an instance) 72 151.67 P
+-0.54 (ond expression must be an instance of that class or one of its derivatives. If the first expression is an instance) 72 164.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(object, the second expression must be) 72 138.67 T
+(object, the second expression must be) 72 151.67 T
 2 F
-(None) 240.95 138.67 T
+(None) 240.95 151.67 T
 1 F
-(.) 267.35 138.67 T
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