Whitespace normalization.
diff --git a/Lib/encodings/cp737.py b/Lib/encodings/cp737.py
index 6174d85..a4729b1 100644
--- a/Lib/encodings/cp737.py
+++ b/Lib/encodings/cp737.py
@@ -16,14 +16,14 @@
     def encode(self,input,errors='strict'):
 
         return codecs.charmap_encode(input,errors,encoding_map)
-        
+
     def decode(self,input,errors='strict'):
 
         return codecs.charmap_decode(input,errors,decoding_map)
 
 class StreamWriter(Codec,codecs.StreamWriter):
     pass
-        
+
 class StreamReader(Codec,codecs.StreamReader):
     pass
 
@@ -37,134 +37,134 @@
 
 decoding_map = codecs.make_identity_dict(range(256))
 decoding_map.update({
-	0x0080: 0x0391,	# GREEK CAPITAL LETTER ALPHA
-	0x0081: 0x0392,	# GREEK CAPITAL LETTER BETA
-	0x0082: 0x0393,	# GREEK CAPITAL LETTER GAMMA
-	0x0083: 0x0394,	# GREEK CAPITAL LETTER DELTA
-	0x0084: 0x0395,	# GREEK CAPITAL LETTER EPSILON
-	0x0085: 0x0396,	# GREEK CAPITAL LETTER ZETA
-	0x0086: 0x0397,	# GREEK CAPITAL LETTER ETA
-	0x0087: 0x0398,	# GREEK CAPITAL LETTER THETA
-	0x0088: 0x0399,	# GREEK CAPITAL LETTER IOTA
-	0x0089: 0x039a,	# GREEK CAPITAL LETTER KAPPA
-	0x008a: 0x039b,	# GREEK CAPITAL LETTER LAMDA
-	0x008b: 0x039c,	# GREEK CAPITAL LETTER MU
-	0x008c: 0x039d,	# GREEK CAPITAL LETTER NU
-	0x008d: 0x039e,	# GREEK CAPITAL LETTER XI
-	0x008e: 0x039f,	# GREEK CAPITAL LETTER OMICRON
-	0x008f: 0x03a0,	# GREEK CAPITAL LETTER PI
-	0x0090: 0x03a1,	# GREEK CAPITAL LETTER RHO
-	0x0091: 0x03a3,	# GREEK CAPITAL LETTER SIGMA
-	0x0092: 0x03a4,	# GREEK CAPITAL LETTER TAU
-	0x0093: 0x03a5,	# GREEK CAPITAL LETTER UPSILON
-	0x0094: 0x03a6,	# GREEK CAPITAL LETTER PHI
-	0x0095: 0x03a7,	# GREEK CAPITAL LETTER CHI
-	0x0096: 0x03a8,	# GREEK CAPITAL LETTER PSI
-	0x0097: 0x03a9,	# GREEK CAPITAL LETTER OMEGA
-	0x0098: 0x03b1,	# GREEK SMALL LETTER ALPHA
-	0x0099: 0x03b2,	# GREEK SMALL LETTER BETA
-	0x009a: 0x03b3,	# GREEK SMALL LETTER GAMMA
-	0x009b: 0x03b4,	# GREEK SMALL LETTER DELTA
-	0x009c: 0x03b5,	# GREEK SMALL LETTER EPSILON
-	0x009d: 0x03b6,	# GREEK SMALL LETTER ZETA
-	0x009e: 0x03b7,	# GREEK SMALL LETTER ETA
-	0x009f: 0x03b8,	# GREEK SMALL LETTER THETA
-	0x00a0: 0x03b9,	# GREEK SMALL LETTER IOTA
-	0x00a1: 0x03ba,	# GREEK SMALL LETTER KAPPA
-	0x00a2: 0x03bb,	# GREEK SMALL LETTER LAMDA
-	0x00a3: 0x03bc,	# GREEK SMALL LETTER MU
-	0x00a4: 0x03bd,	# GREEK SMALL LETTER NU
-	0x00a5: 0x03be,	# GREEK SMALL LETTER XI
-	0x00a6: 0x03bf,	# GREEK SMALL LETTER OMICRON
-	0x00a7: 0x03c0,	# GREEK SMALL LETTER PI
-	0x00a8: 0x03c1,	# GREEK SMALL LETTER RHO
-	0x00a9: 0x03c3,	# GREEK SMALL LETTER SIGMA
-	0x00aa: 0x03c2,	# GREEK SMALL LETTER FINAL SIGMA
-	0x00ab: 0x03c4,	# GREEK SMALL LETTER TAU
-	0x00ac: 0x03c5,	# GREEK SMALL LETTER UPSILON
-	0x00ad: 0x03c6,	# GREEK SMALL LETTER PHI
-	0x00ae: 0x03c7,	# GREEK SMALL LETTER CHI
-	0x00af: 0x03c8,	# GREEK SMALL LETTER PSI
-	0x00b0: 0x2591,	# LIGHT SHADE
-	0x00b1: 0x2592,	# MEDIUM SHADE
-	0x00b2: 0x2593,	# DARK SHADE
-	0x00b3: 0x2502,	# BOX DRAWINGS LIGHT VERTICAL
-	0x00b4: 0x2524,	# BOX DRAWINGS LIGHT VERTICAL AND LEFT
-	0x00b5: 0x2561,	# BOX DRAWINGS VERTICAL SINGLE AND LEFT DOUBLE
-	0x00b6: 0x2562,	# BOX DRAWINGS VERTICAL DOUBLE AND LEFT SINGLE
-	0x00b7: 0x2556,	# BOX DRAWINGS DOWN DOUBLE AND LEFT SINGLE
-	0x00b8: 0x2555,	# BOX DRAWINGS DOWN SINGLE AND LEFT DOUBLE
-	0x00b9: 0x2563,	# BOX DRAWINGS DOUBLE VERTICAL AND LEFT
-	0x00ba: 0x2551,	# BOX DRAWINGS DOUBLE VERTICAL
-	0x00bb: 0x2557,	# BOX DRAWINGS DOUBLE DOWN AND LEFT
-	0x00bc: 0x255d,	# BOX DRAWINGS DOUBLE UP AND LEFT
-	0x00bd: 0x255c,	# BOX DRAWINGS UP DOUBLE AND LEFT SINGLE
-	0x00be: 0x255b,	# BOX DRAWINGS UP SINGLE AND LEFT DOUBLE
-	0x00bf: 0x2510,	# BOX DRAWINGS LIGHT DOWN AND LEFT
-	0x00c0: 0x2514,	# BOX DRAWINGS LIGHT UP AND RIGHT
-	0x00c1: 0x2534,	# BOX DRAWINGS LIGHT UP AND HORIZONTAL
-	0x00c2: 0x252c,	# BOX DRAWINGS LIGHT DOWN AND HORIZONTAL
-	0x00c3: 0x251c,	# BOX DRAWINGS LIGHT VERTICAL AND RIGHT
-	0x00c4: 0x2500,	# BOX DRAWINGS LIGHT HORIZONTAL
-	0x00c5: 0x253c,	# BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL
-	0x00c6: 0x255e,	# BOX DRAWINGS VERTICAL SINGLE AND RIGHT DOUBLE
-	0x00c7: 0x255f,	# BOX DRAWINGS VERTICAL DOUBLE AND RIGHT SINGLE
-	0x00c8: 0x255a,	# BOX DRAWINGS DOUBLE UP AND RIGHT
-	0x00c9: 0x2554,	# BOX DRAWINGS DOUBLE DOWN AND RIGHT
-	0x00ca: 0x2569,	# BOX DRAWINGS DOUBLE UP AND HORIZONTAL
-	0x00cb: 0x2566,	# BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL
-	0x00cc: 0x2560,	# BOX DRAWINGS DOUBLE VERTICAL AND RIGHT
-	0x00cd: 0x2550,	# BOX DRAWINGS DOUBLE HORIZONTAL
-	0x00ce: 0x256c,	# BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL
-	0x00cf: 0x2567,	# BOX DRAWINGS UP SINGLE AND HORIZONTAL DOUBLE
-	0x00d0: 0x2568,	# BOX DRAWINGS UP DOUBLE AND HORIZONTAL SINGLE
-	0x00d1: 0x2564,	# BOX DRAWINGS DOWN SINGLE AND HORIZONTAL DOUBLE
-	0x00d2: 0x2565,	# BOX DRAWINGS DOWN DOUBLE AND HORIZONTAL SINGLE
-	0x00d3: 0x2559,	# BOX DRAWINGS UP DOUBLE AND RIGHT SINGLE
-	0x00d4: 0x2558,	# BOX DRAWINGS UP SINGLE AND RIGHT DOUBLE
-	0x00d5: 0x2552,	# BOX DRAWINGS DOWN SINGLE AND RIGHT DOUBLE
-	0x00d6: 0x2553,	# BOX DRAWINGS DOWN DOUBLE AND RIGHT SINGLE
-	0x00d7: 0x256b,	# BOX DRAWINGS VERTICAL DOUBLE AND HORIZONTAL SINGLE
-	0x00d8: 0x256a,	# BOX DRAWINGS VERTICAL SINGLE AND HORIZONTAL DOUBLE
-	0x00d9: 0x2518,	# BOX DRAWINGS LIGHT UP AND LEFT
-	0x00da: 0x250c,	# BOX DRAWINGS LIGHT DOWN AND RIGHT
-	0x00db: 0x2588,	# FULL BLOCK
-	0x00dc: 0x2584,	# LOWER HALF BLOCK
-	0x00dd: 0x258c,	# LEFT HALF BLOCK
-	0x00de: 0x2590,	# RIGHT HALF BLOCK
-	0x00df: 0x2580,	# UPPER HALF BLOCK
-	0x00e0: 0x03c9,	# GREEK SMALL LETTER OMEGA
-	0x00e1: 0x03ac,	# GREEK SMALL LETTER ALPHA WITH TONOS
-	0x00e2: 0x03ad,	# GREEK SMALL LETTER EPSILON WITH TONOS
-	0x00e3: 0x03ae,	# GREEK SMALL LETTER ETA WITH TONOS
-	0x00e4: 0x03ca,	# GREEK SMALL LETTER IOTA WITH DIALYTIKA
-	0x00e5: 0x03af,	# GREEK SMALL LETTER IOTA WITH TONOS
-	0x00e6: 0x03cc,	# GREEK SMALL LETTER OMICRON WITH TONOS
-	0x00e7: 0x03cd,	# GREEK SMALL LETTER UPSILON WITH TONOS
-	0x00e8: 0x03cb,	# GREEK SMALL LETTER UPSILON WITH DIALYTIKA
-	0x00e9: 0x03ce,	# GREEK SMALL LETTER OMEGA WITH TONOS
-	0x00ea: 0x0386,	# GREEK CAPITAL LETTER ALPHA WITH TONOS
-	0x00eb: 0x0388,	# GREEK CAPITAL LETTER EPSILON WITH TONOS
-	0x00ec: 0x0389,	# GREEK CAPITAL LETTER ETA WITH TONOS
-	0x00ed: 0x038a,	# GREEK CAPITAL LETTER IOTA WITH TONOS
-	0x00ee: 0x038c,	# GREEK CAPITAL LETTER OMICRON WITH TONOS
-	0x00ef: 0x038e,	# GREEK CAPITAL LETTER UPSILON WITH TONOS
-	0x00f0: 0x038f,	# GREEK CAPITAL LETTER OMEGA WITH TONOS
-	0x00f1: 0x00b1,	# PLUS-MINUS SIGN
-	0x00f2: 0x2265,	# GREATER-THAN OR EQUAL TO
-	0x00f3: 0x2264,	# LESS-THAN OR EQUAL TO
-	0x00f4: 0x03aa,	# GREEK CAPITAL LETTER IOTA WITH DIALYTIKA
-	0x00f5: 0x03ab,	# GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA
-	0x00f6: 0x00f7,	# DIVISION SIGN
-	0x00f7: 0x2248,	# ALMOST EQUAL TO
-	0x00f8: 0x00b0,	# DEGREE SIGN
-	0x00f9: 0x2219,	# BULLET OPERATOR
-	0x00fa: 0x00b7,	# MIDDLE DOT
-	0x00fb: 0x221a,	# SQUARE ROOT
-	0x00fc: 0x207f,	# SUPERSCRIPT LATIN SMALL LETTER N
-	0x00fd: 0x00b2,	# SUPERSCRIPT TWO
-	0x00fe: 0x25a0,	# BLACK SQUARE
-	0x00ff: 0x00a0,	# NO-BREAK SPACE
+        0x0080: 0x0391, # GREEK CAPITAL LETTER ALPHA
+        0x0081: 0x0392, # GREEK CAPITAL LETTER BETA
+        0x0082: 0x0393, # GREEK CAPITAL LETTER GAMMA
+        0x0083: 0x0394, # GREEK CAPITAL LETTER DELTA
+        0x0084: 0x0395, # GREEK CAPITAL LETTER EPSILON
+        0x0085: 0x0396, # GREEK CAPITAL LETTER ZETA
+        0x0086: 0x0397, # GREEK CAPITAL LETTER ETA
+        0x0087: 0x0398, # GREEK CAPITAL LETTER THETA
+        0x0088: 0x0399, # GREEK CAPITAL LETTER IOTA
+        0x0089: 0x039a, # GREEK CAPITAL LETTER KAPPA
+        0x008a: 0x039b, # GREEK CAPITAL LETTER LAMDA
+        0x008b: 0x039c, # GREEK CAPITAL LETTER MU
+        0x008c: 0x039d, # GREEK CAPITAL LETTER NU
+        0x008d: 0x039e, # GREEK CAPITAL LETTER XI
+        0x008e: 0x039f, # GREEK CAPITAL LETTER OMICRON
+        0x008f: 0x03a0, # GREEK CAPITAL LETTER PI
+        0x0090: 0x03a1, # GREEK CAPITAL LETTER RHO
+        0x0091: 0x03a3, # GREEK CAPITAL LETTER SIGMA
+        0x0092: 0x03a4, # GREEK CAPITAL LETTER TAU
+        0x0093: 0x03a5, # GREEK CAPITAL LETTER UPSILON
+        0x0094: 0x03a6, # GREEK CAPITAL LETTER PHI
+        0x0095: 0x03a7, # GREEK CAPITAL LETTER CHI
+        0x0096: 0x03a8, # GREEK CAPITAL LETTER PSI
+        0x0097: 0x03a9, # GREEK CAPITAL LETTER OMEGA
+        0x0098: 0x03b1, # GREEK SMALL LETTER ALPHA
+        0x0099: 0x03b2, # GREEK SMALL LETTER BETA
+        0x009a: 0x03b3, # GREEK SMALL LETTER GAMMA
+        0x009b: 0x03b4, # GREEK SMALL LETTER DELTA
+        0x009c: 0x03b5, # GREEK SMALL LETTER EPSILON
+        0x009d: 0x03b6, # GREEK SMALL LETTER ZETA
+        0x009e: 0x03b7, # GREEK SMALL LETTER ETA
+        0x009f: 0x03b8, # GREEK SMALL LETTER THETA
+        0x00a0: 0x03b9, # GREEK SMALL LETTER IOTA
+        0x00a1: 0x03ba, # GREEK SMALL LETTER KAPPA
+        0x00a2: 0x03bb, # GREEK SMALL LETTER LAMDA
+        0x00a3: 0x03bc, # GREEK SMALL LETTER MU
+        0x00a4: 0x03bd, # GREEK SMALL LETTER NU
+        0x00a5: 0x03be, # GREEK SMALL LETTER XI
+        0x00a6: 0x03bf, # GREEK SMALL LETTER OMICRON
+        0x00a7: 0x03c0, # GREEK SMALL LETTER PI
+        0x00a8: 0x03c1, # GREEK SMALL LETTER RHO
+        0x00a9: 0x03c3, # GREEK SMALL LETTER SIGMA
+        0x00aa: 0x03c2, # GREEK SMALL LETTER FINAL SIGMA
+        0x00ab: 0x03c4, # GREEK SMALL LETTER TAU
+        0x00ac: 0x03c5, # GREEK SMALL LETTER UPSILON
+        0x00ad: 0x03c6, # GREEK SMALL LETTER PHI
+        0x00ae: 0x03c7, # GREEK SMALL LETTER CHI
+        0x00af: 0x03c8, # GREEK SMALL LETTER PSI
+        0x00b0: 0x2591, # LIGHT SHADE
+        0x00b1: 0x2592, # MEDIUM SHADE
+        0x00b2: 0x2593, # DARK SHADE
+        0x00b3: 0x2502, # BOX DRAWINGS LIGHT VERTICAL
+        0x00b4: 0x2524, # BOX DRAWINGS LIGHT VERTICAL AND LEFT
+        0x00b5: 0x2561, # BOX DRAWINGS VERTICAL SINGLE AND LEFT DOUBLE
+        0x00b6: 0x2562, # BOX DRAWINGS VERTICAL DOUBLE AND LEFT SINGLE
+        0x00b7: 0x2556, # BOX DRAWINGS DOWN DOUBLE AND LEFT SINGLE
+        0x00b8: 0x2555, # BOX DRAWINGS DOWN SINGLE AND LEFT DOUBLE
+        0x00b9: 0x2563, # BOX DRAWINGS DOUBLE VERTICAL AND LEFT
+        0x00ba: 0x2551, # BOX DRAWINGS DOUBLE VERTICAL
+        0x00bb: 0x2557, # BOX DRAWINGS DOUBLE DOWN AND LEFT
+        0x00bc: 0x255d, # BOX DRAWINGS DOUBLE UP AND LEFT
+        0x00bd: 0x255c, # BOX DRAWINGS UP DOUBLE AND LEFT SINGLE
+        0x00be: 0x255b, # BOX DRAWINGS UP SINGLE AND LEFT DOUBLE
+        0x00bf: 0x2510, # BOX DRAWINGS LIGHT DOWN AND LEFT
+        0x00c0: 0x2514, # BOX DRAWINGS LIGHT UP AND RIGHT
+        0x00c1: 0x2534, # BOX DRAWINGS LIGHT UP AND HORIZONTAL
+        0x00c2: 0x252c, # BOX DRAWINGS LIGHT DOWN AND HORIZONTAL
+        0x00c3: 0x251c, # BOX DRAWINGS LIGHT VERTICAL AND RIGHT
+        0x00c4: 0x2500, # BOX DRAWINGS LIGHT HORIZONTAL
+        0x00c5: 0x253c, # BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL
+        0x00c6: 0x255e, # BOX DRAWINGS VERTICAL SINGLE AND RIGHT DOUBLE
+        0x00c7: 0x255f, # BOX DRAWINGS VERTICAL DOUBLE AND RIGHT SINGLE
+        0x00c8: 0x255a, # BOX DRAWINGS DOUBLE UP AND RIGHT
+        0x00c9: 0x2554, # BOX DRAWINGS DOUBLE DOWN AND RIGHT
+        0x00ca: 0x2569, # BOX DRAWINGS DOUBLE UP AND HORIZONTAL
+        0x00cb: 0x2566, # BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL
+        0x00cc: 0x2560, # BOX DRAWINGS DOUBLE VERTICAL AND RIGHT
+        0x00cd: 0x2550, # BOX DRAWINGS DOUBLE HORIZONTAL
+        0x00ce: 0x256c, # BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL
+        0x00cf: 0x2567, # BOX DRAWINGS UP SINGLE AND HORIZONTAL DOUBLE
+        0x00d0: 0x2568, # BOX DRAWINGS UP DOUBLE AND HORIZONTAL SINGLE
+        0x00d1: 0x2564, # BOX DRAWINGS DOWN SINGLE AND HORIZONTAL DOUBLE
+        0x00d2: 0x2565, # BOX DRAWINGS DOWN DOUBLE AND HORIZONTAL SINGLE
+        0x00d3: 0x2559, # BOX DRAWINGS UP DOUBLE AND RIGHT SINGLE
+        0x00d4: 0x2558, # BOX DRAWINGS UP SINGLE AND RIGHT DOUBLE
+        0x00d5: 0x2552, # BOX DRAWINGS DOWN SINGLE AND RIGHT DOUBLE
+        0x00d6: 0x2553, # BOX DRAWINGS DOWN DOUBLE AND RIGHT SINGLE
+        0x00d7: 0x256b, # BOX DRAWINGS VERTICAL DOUBLE AND HORIZONTAL SINGLE
+        0x00d8: 0x256a, # BOX DRAWINGS VERTICAL SINGLE AND HORIZONTAL DOUBLE
+        0x00d9: 0x2518, # BOX DRAWINGS LIGHT UP AND LEFT
+        0x00da: 0x250c, # BOX DRAWINGS LIGHT DOWN AND RIGHT
+        0x00db: 0x2588, # FULL BLOCK
+        0x00dc: 0x2584, # LOWER HALF BLOCK
+        0x00dd: 0x258c, # LEFT HALF BLOCK
+        0x00de: 0x2590, # RIGHT HALF BLOCK
+        0x00df: 0x2580, # UPPER HALF BLOCK
+        0x00e0: 0x03c9, # GREEK SMALL LETTER OMEGA
+        0x00e1: 0x03ac, # GREEK SMALL LETTER ALPHA WITH TONOS
+        0x00e2: 0x03ad, # GREEK SMALL LETTER EPSILON WITH TONOS
+        0x00e3: 0x03ae, # GREEK SMALL LETTER ETA WITH TONOS
+        0x00e4: 0x03ca, # GREEK SMALL LETTER IOTA WITH DIALYTIKA
+        0x00e5: 0x03af, # GREEK SMALL LETTER IOTA WITH TONOS
+        0x00e6: 0x03cc, # GREEK SMALL LETTER OMICRON WITH TONOS
+        0x00e7: 0x03cd, # GREEK SMALL LETTER UPSILON WITH TONOS
+        0x00e8: 0x03cb, # GREEK SMALL LETTER UPSILON WITH DIALYTIKA
+        0x00e9: 0x03ce, # GREEK SMALL LETTER OMEGA WITH TONOS
+        0x00ea: 0x0386, # GREEK CAPITAL LETTER ALPHA WITH TONOS
+        0x00eb: 0x0388, # GREEK CAPITAL LETTER EPSILON WITH TONOS
+        0x00ec: 0x0389, # GREEK CAPITAL LETTER ETA WITH TONOS
+        0x00ed: 0x038a, # GREEK CAPITAL LETTER IOTA WITH TONOS
+        0x00ee: 0x038c, # GREEK CAPITAL LETTER OMICRON WITH TONOS
+        0x00ef: 0x038e, # GREEK CAPITAL LETTER UPSILON WITH TONOS
+        0x00f0: 0x038f, # GREEK CAPITAL LETTER OMEGA WITH TONOS
+        0x00f1: 0x00b1, # PLUS-MINUS SIGN
+        0x00f2: 0x2265, # GREATER-THAN OR EQUAL TO
+        0x00f3: 0x2264, # LESS-THAN OR EQUAL TO
+        0x00f4: 0x03aa, # GREEK CAPITAL LETTER IOTA WITH DIALYTIKA
+        0x00f5: 0x03ab, # GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA
+        0x00f6: 0x00f7, # DIVISION SIGN
+        0x00f7: 0x2248, # ALMOST EQUAL TO
+        0x00f8: 0x00b0, # DEGREE SIGN
+        0x00f9: 0x2219, # BULLET OPERATOR
+        0x00fa: 0x00b7, # MIDDLE DOT
+        0x00fb: 0x221a, # SQUARE ROOT
+        0x00fc: 0x207f, # SUPERSCRIPT LATIN SMALL LETTER N
+        0x00fd: 0x00b2, # SUPERSCRIPT TWO
+        0x00fe: 0x25a0, # BLACK SQUARE
+        0x00ff: 0x00a0, # NO-BREAK SPACE
 })
 
 ### Encoding Map