Library

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- Issue #19262: Initial check in of the 'asyncio' package (a.k.a. Tulip,

a.k.a. PEP 3156). There are no docs yet, and the PEP is slightly

out of date with the code. This module will have *provisional* status

Release date: 2013-09-29

Core and Builtins

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the local variables of all the stack frames referenced by a traceback

object.

Tests

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- Issue #14439: Python now prints the traceback on runpy failure at startup.

- Issue #17469: Fix _Py_GetAllocatedBlocks() and sys.getallocatedblocks()

when running on valgrind.

- Issue #18357: add tests for dictview set difference.

Patch by Fraser Tweedale.

- importlib.abc.SourceLoader.get_source() no longer changes SyntaxError or

UnicodeDecodeError into ImportError.