Patch by Diana Clarke.

Patch by Mark Levitt

Close #15442: Expand the list of default directories ignored by filecmp.dircmp and expose it as a module attribute

Merged revisions 70342,70385-70387,70389-70390,70392-70393,70395,70400,70405-70406,70418,70438,70464,70468 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r70342 | georg.brandl | 2009-03-13 14:03:58 -0500 (Fri, 13 Mar 2009) | 1 line

  #5486: typos.
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  r70385 | benjamin.peterson | 2009-03-15 09:38:55 -0500 (Sun, 15 Mar 2009) | 1 line

  fix tuple.index() error message #5495
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  r70386 | georg.brandl | 2009-03-15 16:32:06 -0500 (Sun, 15 Mar 2009) | 1 line

  #5496: fix docstring of lookup().
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  r70387 | georg.brandl | 2009-03-15 16:37:16 -0500 (Sun, 15 Mar 2009) | 1 line

  #5493: clarify __nonzero__ docs.
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  r70389 | georg.brandl | 2009-03-15 16:43:38 -0500 (Sun, 15 Mar 2009) | 1 line

  Fix a small nit in the error message if bool() falls back on __len__ and it returns the wrong type: it would tell the user that __nonzero__ should return bool or int.
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  r70390 | georg.brandl | 2009-03-15 16:44:43 -0500 (Sun, 15 Mar 2009) | 1 line

  #5491: clarify nested() semantics.
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  r70392 | georg.brandl | 2009-03-15 16:46:00 -0500 (Sun, 15 Mar 2009) | 1 line

  #5488: add missing struct member.
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  r70393 | georg.brandl | 2009-03-15 16:47:42 -0500 (Sun, 15 Mar 2009) | 1 line

  #5478: fix copy-paste oversight in function signature.
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  r70395 | georg.brandl | 2009-03-15 16:51:48 -0500 (Sun, 15 Mar 2009) | 1 line

  #5276: document IDLESTARTUP and .Idle.py.
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  r70400 | georg.brandl | 2009-03-15 16:59:37 -0500 (Sun, 15 Mar 2009) | 3 lines

  Fix markup in re docs and give a mail address in regex howto, so that
  the recommendation to send suggestions to the author can be followed.
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  r70405 | georg.brandl | 2009-03-15 17:11:07 -0500 (Sun, 15 Mar 2009) | 7 lines

  Move the previously local import of threading to module level.

  This is cleaner and avoids lockups in obscure cases where a Queue
  is instantiated while the import lock is already held by another thread.

  OKed by Tim Peters.
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  r70406 | hirokazu.yamamoto | 2009-03-15 17:43:14 -0500 (Sun, 15 Mar 2009) | 1 line

  Added skip for old MSVC.
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  r70418 | georg.brandl | 2009-03-16 14:42:03 -0500 (Mon, 16 Mar 2009) | 1 line

  Add token markup.
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  r70438 | benjamin.peterson | 2009-03-17 15:29:51 -0500 (Tue, 17 Mar 2009) | 1 line

  I thought this was begging for an example
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  r70464 | benjamin.peterson | 2009-03-18 15:58:09 -0500 (Wed, 18 Mar 2009) | 1 line

  a much better example
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  r70468 | benjamin.peterson | 2009-03-18 22:04:31 -0500 (Wed, 18 Mar 2009) | 1 line

  close files after comparing them
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svn+ssh://pythondev@svn.python.org/python/trunk

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  r65787 | brett.cannon | 2008-08-17 15:10:11 -0700 (Sun, 17 Aug 2008) | 3 lines

  Remove imports of 'warnings' that are no longer needed in dummy_thread,
  filecmp, and shelve.
........

filecmp, and shelve.

warnings triggered under -3.

svn+ssh://pythondev@svn.python.org/python/branches/p3yk

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  r56127 | georg.brandl | 2007-06-30 09:32:49 +0200 (Sat, 30 Jun 2007) | 2 lines

  Fix a place where floor division would be in order.
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  r56135 | guido.van.rossum | 2007-07-01 06:13:54 +0200 (Sun, 01 Jul 2007) | 28 lines

  Make map() and filter() identical to itertools.imap() and .ifilter(),
  respectively.

  I fixed two bootstrap issues, due to the dynamic import of itertools:

  1. Starting python requires that map() and filter() are not used until
     site.py has added build/lib.<arch> to sys.path.
  2. Building python requires that setup.py and distutils and everything
     they use is free of map() and filter() calls.

  Beyond this, I only fixed the tests in test_builtin.py.
  Others, please help fixing the remaining tests that are now broken!
  The fixes are usually simple:
  a. map(None, X) -> list(X)
  b. map(F, X) -> list(map(F, X))
  c. map(lambda x: F(x), X) -> [F(x) for x in X]
  d. filter(F, X) -> list(filter(F, X))
  e. filter(lambda x: P(x), X) -> [x for x in X if P(x)]

  Someone, please also contribute a fixer for 2to3 to do this.
  It can leave map()/filter() calls alone that are already
  inside a list() or sorted() call or for-loop.

  Only in rare cases have I seen code that depends on map() of lists
  of different lengths going to the end of the longest, or on filter()
  of a string or tuple returning an object of the same type; these
  will need more thought to fix.
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  r56136 | guido.van.rossum | 2007-07-01 06:22:01 +0200 (Sun, 01 Jul 2007) | 3 lines

  Make it so that test_decimal fails instead of hangs, to help automated
  test runners.
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  r56139 | georg.brandl | 2007-07-01 18:20:58 +0200 (Sun, 01 Jul 2007) | 2 lines

  Fix a few test cases after the map->imap change.
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  r56142 | neal.norwitz | 2007-07-02 06:38:12 +0200 (Mon, 02 Jul 2007) | 1 line

  Get a bunch more tests passing after converting map/filter to return iterators.
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  r56147 | guido.van.rossum | 2007-07-02 15:32:02 +0200 (Mon, 02 Jul 2007) | 4 lines

  Fix the remaining failing unit tests (at least on OSX).
  Also tweaked urllib2 so it doesn't raise socket.gaierror when
  all network interfaces are turned off.
........

  and .keys(), .items(), .values() return dict views.

The dict views aren't fully functional yet; in particular, they can't
be compared to sets yet.  but they are useful as "iterator wells".

There are still 27 failing unit tests; I expect that many of these
have fairly trivial fixes, but there are so many, I could use help.

There's one major and one minor category still unfixed:
doctests are the major category (and I hope to be able to augment the
refactoring tool to refactor bona fide doctests soon);
other code generating print statements in strings is the minor category.

(Oh, and I don't know if the compiler package works.)

(a) "except E, V" -> "except E as V"
(b) V is now limited to a simple name (local variable)
(c) V is now deleted at the end of the except block

* Changed variable name from 'list' to 'flist'.
* Replaced "while 1" with "while True".
* Replaced if/elif/elif/elif structure with a shorter and
  faster dispatch dictionary that maps attrs to methods.
* Simplified and sped comparison logic by using
  ifilter, ifilterfalse, and dict.fromkeys.
* Used True and False rather than 1 and 0.

Fix use of GetoptError, so demo() now works

   Simply replace all uses of statcache with os.stat.

Should I add a DeprecationWarning triggered if the use_statcache argument
is supplied, so we can remove it in 2.4?

Use != instead of <> since <> is documented as "obsolescent".
Use "is" and "is not" when comparing with None or type objects.

Fixed definition of _cmp.

             and defaults as for filecmp.cmp().  Updated docstring
             accordingly, and formatted it more like others in the standard
             library.

accidentally wiped out by Ping's patch (which shouldn't have affected
this file at all, had Ping done a cvs update).

This checkin restores Gordon's version, with Fredrik's change merged
back in.