Python 3.9.0a5
diff --git a/Lib/pydoc_data/topics.py b/Lib/pydoc_data/topics.py
index c6ba945..11b48fd 100644
--- a/Lib/pydoc_data/topics.py
+++ b/Lib/pydoc_data/topics.py
@@ -1,5 +1,5 @@
# -*- coding: utf-8 -*-
-# Autogenerated by Sphinx on Tue Feb 25 13:20:31 2020
+# Autogenerated by Sphinx on Mon Mar 23 17:18:04 2020
topics = {'assert': 'The "assert" statement\n'
'**********************\n'
'\n'
@@ -1476,8 +1476,8 @@
' | starred_and_keywords ["," '
'keywords_arguments]\n'
' | keywords_arguments\n'
- ' positional_arguments ::= ["*"] expression ("," ["*"] '
- 'expression)*\n'
+ ' positional_arguments ::= positional_item ("," positional_item)*\n'
+ ' positional_item ::= assignment_expression | "*" expression\n'
' starred_and_keywords ::= ("*" expression | keyword_item)\n'
' ("," "*" expression | "," '
'keyword_item)*\n'
@@ -1717,6 +1717,10 @@
'for\n'
'function decorators. The result is then bound to the class name.\n'
'\n'
+ 'Changed in version 3.9: Classes may be decorated with any valid\n'
+ '"assignment_expression". Previously, the grammar was much more\n'
+ 'restrictive; see **PEP 614** for details.\n'
+ '\n'
'**Programmer’s note:** Variables defined in the class definition '
'are\n'
'class attributes; they are shared by instances. Instance '
@@ -2187,8 +2191,8 @@
'\n'
'The "if" statement is used for conditional execution:\n'
'\n'
- ' if_stmt ::= "if" expression ":" suite\n'
- ' ("elif" expression ":" suite)*\n'
+ ' if_stmt ::= "if" assignment_expression ":" suite\n'
+ ' ("elif" assignment_expression ":" suite)*\n'
' ["else" ":" suite]\n'
'\n'
'It selects exactly one of the suites by evaluating the '
@@ -2211,7 +2215,7 @@
'an\n'
'expression is true:\n'
'\n'
- ' while_stmt ::= "while" expression ":" suite\n'
+ ' while_stmt ::= "while" assignment_expression ":" suite\n'
' ["else" ":" suite]\n'
'\n'
'This repeatedly tests the expression and, if it is true, '
@@ -2626,8 +2630,8 @@
'[parameter_list] ")"\n'
' ["->" expression] ":" suite\n'
' decorators ::= decorator+\n'
- ' decorator ::= "@" dotted_name ["(" '
- '[argument_list [","]] ")"] NEWLINE\n'
+ ' decorator ::= "@" assignment_expression '
+ 'NEWLINE\n'
' dotted_name ::= identifier ("." identifier)*\n'
' parameter_list ::= defparameter ("," '
'defparameter)* "," "/" ["," [parameter_list_no_posonly]]\n'
@@ -2681,6 +2685,11 @@
'the name\n'
'"func".\n'
'\n'
+ 'Changed in version 3.9: Functions may be decorated with any '
+ 'valid\n'
+ '"assignment_expression". Previously, the grammar was much more\n'
+ 'restrictive; see **PEP 614** for details.\n'
+ '\n'
'When one or more *parameters* have the form *parameter* "="\n'
'*expression*, the function is said to have “default parameter '
'values.”\n'
@@ -2882,6 +2891,10 @@
'function decorators. The result is then bound to the class '
'name.\n'
'\n'
+ 'Changed in version 3.9: Classes may be decorated with any valid\n'
+ '"assignment_expression". Previously, the grammar was much more\n'
+ 'restrictive; see **PEP 614** for details.\n'
+ '\n'
'**Programmer’s note:** Variables defined in the class definition '
'are\n'
'class attributes; they are shared by instances. Instance '
@@ -4403,8 +4416,8 @@
'\n'
'The "if" statement is used for conditional execution:\n'
'\n'
- ' if_stmt ::= "if" expression ":" suite\n'
- ' ("elif" expression ":" suite)*\n'
+ ' if_stmt ::= "if" assignment_expression ":" suite\n'
+ ' ("elif" assignment_expression ":" suite)*\n'
' ["else" ":" suite]\n'
'\n'
'It selects exactly one of the suites by evaluating the expressions '
@@ -4824,7 +4837,7 @@
'[","]\n'
' starred_expression ::= expression | (starred_item ",")* '
'[starred_item]\n'
- ' starred_item ::= expression | "*" or_expr\n'
+ ' starred_item ::= assignment_expression | "*" or_expr\n'
'\n'
'Except when part of a list or set display, an expression list\n'
'containing at least one comma yields a tuple. The length of '
@@ -5134,11 +5147,11 @@
'only\n'
'supported by the numeric types.\n'
'\n'
- 'A general convention is that an empty format string ("""") '
+ 'A general convention is that an empty format specification '
'produces\n'
'the same result as if you had called "str()" on the value. '
'A non-empty\n'
- 'format string typically modifies the result.\n'
+ 'format specification typically modifies the result.\n'
'\n'
'The general form of a *standard format specifier* is:\n'
'\n'
@@ -5693,8 +5706,8 @@
'[parameter_list] ")"\n'
' ["->" expression] ":" suite\n'
' decorators ::= decorator+\n'
- ' decorator ::= "@" dotted_name ["(" '
- '[argument_list [","]] ")"] NEWLINE\n'
+ ' decorator ::= "@" assignment_expression '
+ 'NEWLINE\n'
' dotted_name ::= identifier ("." identifier)*\n'
' parameter_list ::= defparameter ("," '
'defparameter)* "," "/" ["," [parameter_list_no_posonly]]\n'
@@ -5748,6 +5761,11 @@
'the name\n'
'"func".\n'
'\n'
+ 'Changed in version 3.9: Functions may be decorated with any '
+ 'valid\n'
+ '"assignment_expression". Previously, the grammar was much more\n'
+ 'restrictive; see **PEP 614** for details.\n'
+ '\n'
'When one or more *parameters* have the form *parameter* "="\n'
'*expression*, the function is said to have “default parameter '
'values.”\n'
@@ -6119,8 +6137,8 @@
'\n'
'The "if" statement is used for conditional execution:\n'
'\n'
- ' if_stmt ::= "if" expression ":" suite\n'
- ' ("elif" expression ":" suite)*\n'
+ ' if_stmt ::= "if" assignment_expression ":" suite\n'
+ ' ("elif" assignment_expression ":" suite)*\n'
' ["else" ":" suite]\n'
'\n'
'It selects exactly one of the suites by evaluating the expressions '
@@ -9018,7 +9036,7 @@
'\n'
'If the metaclass has no "__prepare__" attribute, then the '
'class\n'
- 'namespace is initialised as an empty "dict()".\n'
+ 'namespace is initialised as an empty ordered mapping.\n'
'\n'
'See also:\n'
'\n'
@@ -11196,10 +11214,17 @@
'for\n'
' the operands provided. (The interpreter will then try the\n'
' reflected operation, or some other fallback, depending on the\n'
- ' operator.) Its truth value is true.\n'
+ ' operator.) It should not be evaluated in a boolean context.\n'
'\n'
' See Implementing the arithmetic operations for more details.\n'
'\n'
+ ' Changed in version 3.9: Evaluating "NotImplemented" in a '
+ 'boolean\n'
+ ' context is deprecated. While it currently evaluates as true, it\n'
+ ' will emit a "DeprecationWarning". It will raise a "TypeError" in '
+ 'a\n'
+ ' future version of Python.\n'
+ '\n'
'Ellipsis\n'
' This type has a single value. There is a single object with '
'this\n'
@@ -12487,6 +12512,29 @@
' >>> d.values() == d.values()\n'
' False\n'
'\n'
+ ' d | other\n'
+ '\n'
+ ' Create a new dictionary with the merged keys and '
+ 'values of *d*\n'
+ ' and *other*, which must both be dictionaries. The '
+ 'values of\n'
+ ' *other* take priority when *d* and *other* share '
+ 'keys.\n'
+ '\n'
+ ' New in version 3.9.\n'
+ '\n'
+ ' d |= other\n'
+ '\n'
+ ' Update the dictionary *d* with keys and values from '
+ '*other*,\n'
+ ' which may be either a *mapping* or an *iterable* of '
+ 'key/value\n'
+ ' pairs. The values of *other* take priority when *d* '
+ 'and *other*\n'
+ ' share keys.\n'
+ '\n'
+ ' New in version 3.9.\n'
+ '\n'
' Dictionaries compare equal if and only if they have the '
'same "(key,\n'
' value)" pairs (regardless of ordering). Order comparisons '
@@ -13616,7 +13664,7 @@
'The "while" statement is used for repeated execution as long as an\n'
'expression is true:\n'
'\n'
- ' while_stmt ::= "while" expression ":" suite\n'
+ ' while_stmt ::= "while" assignment_expression ":" suite\n'
' ["else" ":" suite]\n'
'\n'
'This repeatedly tests the expression and, if it is true, executes '