compare two Unicode kinds

HAVE_MBRTOWC is not defined

This is why I should really use hg import rather than patch,
but old habits die hard...

of PyUnicode_FromFormat() function, original patch written by Ysj Ray.

Issue #17289: The readline module now plays nicer with external modules or applications changing the rl_completer_word_break_characters global variable.
Initial patch by Bradley Froehle.

Issue #17289: The readline module now plays nicer with external modules or applications changing the rl_completer_word_break_characters global variable.
Initial patch by Bradley Froehle.

platforms. Patch by Federico Schwindt.

platforms. Patch by Federico Schwindt.

Patch by Chris Rebert.

Patch by Chris Rebert.

* get_instructions generator
* ability to redirect output to a file
* Bytecode and Instruction abstractions

Patch by Nick Coghlan, Ryan Kelly and Thomas Kluyver.

traceback raised when pool task raises an exception.

Putting *n* after the *iterable* matches the signature of other itertools
and recipes.  Also, it reads better.

Suggested by Ezio Melotti.

weakref callbacks.

This is 2e446e87ac5b except that collections/__init__.py has been
modified to import proxy from _weakref instead of weakref.  This
eliminates an import cycle which seems to cause a problem on Unix but
not Windows.

Note that this is a potentially disruptive change since it may
release some system resources which would otherwise remain
perpetually alive (e.g. database connections kept in thread-local
storage).

weakref callbacks.