managed to delete the @test file it intended to delete.  Also, I don't
see a reason to create a 4MB file in the new test, so cut it back to 16K.

Closing an mmap'ed file (calling munmap) twice on Solaris caused a core dump.

Will backport.

exception occurred so it should only be closed in the else clause.
Without this change we can an UnboundLocalError on Linux:

Traceback (most recent call last):
  File "Lib/test/test_mmap.py", line 304, in ?
    test_both()
  File "Lib/test/test_mmap.py", line 208, in test_both
    m.close()
UnboundLocalError: local variable 'm' referenced before assignment

more instances of the bizarre "del f; del m" ways to spell .close() (del
won't do any good here under Jython, etc).

with a size larger than the underlying file worked on Windows.  It
does <wink>.  However, merely creating an mmap that way has the side
effect of growing the file on disk to match the specified size.  A
*later* test assumed that the file on disk was still exactly as it was
before the new "size too big" test was added, but that's no longer true.
So added a hack at the end of the "size too big" test to truncate the
disk file back to its original size on Windows.

Raise ValueError if user passes a size to mmap which is larger
than the file.

imports e.g. test_support must do so using an absolute package name
such as "import test.test_support" or "from test import test_support".

This also updates the README in Lib/test, and gets rid of the
duplicate data dirctory in Lib/test/data (replaced by
Lib/email/test/data).

Now Tim and Jack can have at it. :)

On Win2K it thought 'foo' started at byte offset 0 instead of at the
pagesize, and on Win98 it thought 'foo' didn't exist at all.  Somehow
or other this is related to the new "in memory file" gimmicks in
bsddb, but the old bsddb we use on Windows sucks so bad anyway I don't
want to bother digging deeper.  Flushing the file in test_mmap after
writing to it makes the problem go away, so good enough.

Close a file before trying to unlink it, and apparently Cygwin needs
writes to an mmap'ed file to get flushed before they're visible.

Bugfix candidate, but I think only for the 2.2 line (it's testing
features that I think were new in 2.2).

mmap_find_method():  this obtained the string to find via s#, but it
ignored its length, acting as if it were \0-terminated instead.

Someone please run on Linux too (the extended test_mmap works on Windows).

Bugfix candidate.

to have single "expected output" file.

This gives mmap() on Windows the ability to create read-only, write-
through and copy-on-write mmaps.  A new keyword argument is introduced
because the mmap() signatures diverged between Windows and Unix, so
while they (now) both support this functionality, there wasn't a way to
spell it in a common way without introducing a new spelling gimmick.
The old spellings are still accepted, so there isn't a backward-
compatibility issue here.

Remove unused import of "sys".

If the file TESTFN exists before we start, try to remove it.

Add spaces around the = in some assignments.

and wrap the body in try/finally to ensure TESTFN gets cleaned up no
matter what.

and replaces them with a new API verify(). As a result the regression
suite will also perform its tests in optimization mode.

Written by Marc-Andre Lemburg. Copyright assigned to Guido van Rossum.

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

waste an hour tracking down an illusion; repaired it; writing/reading non-
printable characters (except \t\r\n) into/outof text-mode files ain't
defined x-platform, and at least some Windows text editors do surprising
things in their presence.
Also added a by-hand "build humber" to the Windows build, in an approximation
of Python's inexplicable BUILD-number Unix scheme.  I'll try to remember to
increment it each time I make a Windows installer available.  It's starting
at 2, cuz I've put 2 installers out so far (both with BUILD #0).

This patch fixes the mmap module on Windows 9x.

Also updates the mmap test to remove the test file.

was a superfluous check for the platform.

    Win32 test case