Merged revisions 83393,83396,83398,83404-83405,83408 via svnmerge from
svn+ssh://svn.python.org/python/branches/py3k

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  r83393 | georg.brandl | 2010-08-01 10:35:29 +0200 (So, 01 Aug 2010) | 1 line

  #1690103: fix initial namespace for code run with trace.main().
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  r83396 | georg.brandl | 2010-08-01 10:52:32 +0200 (So, 01 Aug 2010) | 1 line

  #4810: document "--" option separator in timeit help.
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  r83398 | georg.brandl | 2010-08-01 11:06:34 +0200 (So, 01 Aug 2010) | 1 line

  #8826: the "expires" attribute value is a date string with spaces, but apparently not all user-agents put it in quotes.  Handle that as a special case.
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  r83404 | georg.brandl | 2010-08-01 16:25:22 +0200 (So, 01 Aug 2010) | 1 line

  #6439: fix argument type for PySys_SetArgvEx() and Py_SetProgramName() in Demo/embed code.
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  r83405 | georg.brandl | 2010-08-01 16:38:17 +0200 (So, 01 Aug 2010) | 1 line

  #4943: do not try to include drive letters (and colons) when looking for a probably module name.
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  r83408 | georg.brandl | 2010-08-01 17:30:56 +0200 (So, 01 Aug 2010) | 1 line

  #5551: symbolic links never can be mount points.  Fixes the fix for #1713.
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diff --git a/Lib/http/cookies.py b/Lib/http/cookies.py
index 9cb80b9..e584396 100644
--- a/Lib/http/cookies.py
+++ b/Lib/http/cookies.py
@@ -439,19 +439,21 @@
 #
 
 _LegalCharsPatt  = r"[\w\d!#%&'~_`><@,:/\$\*\+\-\.\^\|\)\(\?\}\{\=]"
-_CookiePattern = re.compile(
-    r"(?x)"                       # This is a Verbose pattern
-    r"(?P<key>"                   # Start of group 'key'
-    ""+ _LegalCharsPatt +"+?"     # Any word of at least one letter, nongreedy
-    r")"                          # End of group 'key'
-    r"\s*=\s*"                    # Equal Sign
-    r"(?P<val>"                   # Start of group 'val'
-    r'"(?:[^\\"]|\\.)*"'            # Any doublequoted string
-    r"|"                            # or
-    ""+ _LegalCharsPatt +"*"        # Any word or empty string
-    r")"                          # End of group 'val'
-    r"\s*;?"                      # Probably ending in a semi-colon
-    , re.ASCII)                   # May be removed if safe.
+_CookiePattern = re.compile(r"""
+    (?x)                           # This is a verbose pattern
+    (?P<key>                       # Start of group 'key'
+    """ + _LegalCharsPatt + r"""+?   # Any word of at least one letter
+    )                              # End of group 'key'
+    \s*=\s*                        # Equal Sign
+    (?P<val>                       # Start of group 'val'
+    "(?:[^\\"]|\\.)*"                # Any doublequoted string
+    |                                # or
+    \w{3},\s[\w\d-]{9,11}\s[\d:]{8}\sGMT  # Special case for "expires" attr
+    |                                # or
+    """ + _LegalCharsPatt + r"""*    # Any word or empty string
+    )                              # End of group 'val'
+    \s*;?                          # Probably ending in a semi-colon
+    """, re.ASCII)                 # May be removed if safe.
 
 
 # At long last, here is the cookie class.