factory function. Allow it to be subclassed.

A bunch of header files were not listed as dependencies for object files. Changes to files like Parser/parser.h weren't picked up by make.

PyThreadState_Delete() to avoid an infinite loop when the tstate list
is messed up and has somehow becomes circular and does not contain the
current thread.

I don't know how this happens but it does, *very* rarely.  On more than
one hardware platform.  I have not been able to reproduce it manually.

Attaching to a process where its happening: it has always been in an
infinite loop over a single element tstate list that is not the tstate
we're looking to delete.  It has been in t_bootstrap()'s call to
PyThreadState_DeleteCurrent() as a pthread is exiting.

Fixes #1087735.

Fixed a wrong assumption in configure.in and Include/pyport.h. The is finite function is not called isfinite() but finite(). Sorry, my fault. :)

returning a 0-byte file -- raise an IOError instead.
Original patch from Phil Knirsch.

in urllib and using the other ``_proxy`` env vars.
Original patch by Donovan Baarda.

custom formatting of contents via subclassing PrettyPrinter.

blatant lie in a docstring (it is not useful for security regardless of
how you spell it).

type of encrypted zip files.  Files using extended local headers
needed to compare the check byte against different values.  (according
to reading the infozip unzip crypt.c source code)

Fixes issue1003.

Fix an off-by-one error I noticed.

that have file headers past the 2**31 byte boundary.

subprocess.list2cmdline (windows).

try:
  ...
except:
  ...
  raise
else:
  ...

the else: is unecessary due to the blind except: with a raise.

kicked in during the critical section.  solution: disable gc during
that section.  Patch contributed by jpa and updated by me to cover the
race condition still existing what therve from twistedmatrix pointed
out (already seen and fixed in twisted's own subprocess code).

for inside of the final if needquotes: within subprocess.list2cmdline().

a default timeout has been set, by using getsockopt() to get the error
condition (instead of trying another connect() call, which seems to be
a Linuxism).

2.5 bugfix candidate, assuming no one reports any problems with this change.

ignoring errors, and use this in subprocess to speed up
subprocess creation in close_fds mode. Patch by Mike Klaas.