(Issue 7179)

On MacOSX 10.6 the CoreFoundation framework must be initialized on the main
thread, the constructor function in that framework will cause an SIGABRT when
it is called on any other thread.

Because a number of extension link (indirectly) to CoreFoundation and the
Python core itself didn't the interpreter crashed when importing some
extensions, such as _locale, on a secondary thread.

This fix ensures that Python is linked to CoreFoundation on OSX, which results
in the CoreFoundation constructor being called when Python is loaded. This
does not require code changes.

constructor in case of an error.

string <-> float conversions;  this makes sure that the result of the round
operation is correctly rounded, and hence displays nicely using the new float
repr.

TLS or SSL.  Patch by Giampaolo Rodola'.

PyFormat_FromStringV and PyErr_Format.

the registry under Windows.  Patch by Gabriel Genellina.

Many thanks Stefan Krah for help and OpenSolaris testing.

xrange tests to cover some special cases that caused problems
in py3k.  This is a partial backport of r76292-76293 (see
issue #7298.)

Resolution: Reset the nonce value for each unique nonce (as per RFC 2617)

Issue #6816: expose the zipfile and directory execution mechanism to Python code via the runpy module. Also consolidated some script execution functionality in the test harness into a helper module and removed some implementation details from the runpy module documentation.

handler for it.

catch the case of an option with no handler.

warning, to improve buildbot stability.

a loop until a test fails.  Can be combined with -j.  Patch by Antoine
Pitrou.