embedders of the interpreter to set sys.argv without also modifying
sys.path.  This helps fix `CVE-2008-5983
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.

(e.g. from .os import sep) and it failed, import would still try the implicit
relative import semantics of an absolute import (from os import sep). That's
not right, so when level is negative, only do explicit relative import
semantics.

Fixes issue #7902. Thanks to Meador Inge for the patch.

Forward port some code from Python3:

 * join surrogate pairs if sizeof(Py_UNICODE)==2
 * Enable non-BMP test on narrow builds using u"\U0001D121" instead of
   unichr(0x1D121)

Fix issue #8573 (asyncore._strerror bug): fixed os.strerror typo; included NameError in the tuple of expected exception; added test case for asyncore._strerror.

it from another thread.  Patch by Daniel Stutzbach.

When the error queue is not emptied, strange things can happen on the next SSL call, depending on the OpenSSL version.

fo is not set if the open() fails.

Regenerate (reindent) Python/graminit.c

Use untabify.py + emacs (python3 mode) + manual editions for
Py_BEGIN_ALLOW_THREADS / Py_END_ALLOW_THREADS

issuing a warning.

(Python2 doesn't have PyUnicode_DecodeFSDefault*() functions)

interpreter shutdown semantics. Same issue goes for the methods that __del__
called. Now all the methods capture the global objects it needs as default
values to private parameters (could have stuck them on the class object itself,
but since the objects have nothing directly to do with the class that seemed
wrong).

There is no test as making one that works is hard. This patch was
verified against a consistently failing test in Mercurial's test suite, though,
so it has been tested in some regard.

Closes issue #5099. Thanks to Mary Stern for the bug report and Gabriel
Genellina for writing another patch for the same issue and attempting to write
a test.

assuming framework-specific site-packages directories were being used.