After a discussion in the tracker, the decision was made to keep the
ExFileObject class after all as a subclass of io.BufferedReader instead of
removing it completely.

branch: vs2010
tag: tip
user: Brian Curtin <brian@python.org>
date: Sun May 13 16:15:11 2012 -0500
summary: Changes to allow Profile Guided Optimization builds to succeed on VS2010

Issue #14245: Improve floating-point entry in FAQ.  Thanks Zbyszek Jędrzejewski-Szmek for some of the wording.

Issue #14417: Mutating a dict during lookup now restarts the lookup instead of raising a RuntimeError (undoes issue #14205).

timing attacks. Patch by Jon Oberheide.

The code itself does not raise a DeprecationWarning as the functions
are technically fine, it's just a bad API. Unfortunately experience
has shown that the terrible API has been exposed in various places,
necessitating that it stick around probably until py4k comes around
since it is such a shift to move over to importlib.find_loader().

Patch by Serhiy Storchaka.

(issue #13903).

The long-term goal is to deprecate imp.find_module() in favour of this
API, but it will take some time as some APIs explicitly return/use what
imp.find_module() returns.

universal: it returns a meaningless result. Use sys.maxsize instead of
platform.architecture as a fallback. Patch by Ned Deily.

Patch by Hynek Schlawack.

importlib.abc.FileLoader.load_module()/get_filename() and
importlib.machinery.ExtensionFileLoader.load_module() have their
single argument be optional as the loader's constructor has all the
ncessary information.

This allows for the deprecation of
imp.load_source()/load_compile()/load_package().