"The fix" is to tell Mercurial that the test files are binary.

Windows developers:  to get the correct line endings in your checkout,
delete Lib\test\xmltestdata, and then "hg revert" that directory.

Why the Windows buildbots didn't fail test_sax remains a mystery :-(

Patch import and initialization in SearchEngine to make testing easier.
Improve docstrings, especially to clarify the double role of 'ok' parameters.
Original patch by Phil Webster.

Patch by A. Jesse Jiryu Davis.

runner were run in an environment where the process inherited an ignore
setting for SIGINT.  Restore the SIGINT handler to the desired
KeyboardInterrupt raising one during that test.

sizes.

in docstrings and comments.

test.support, run the test if the platform matchs!

error messages and comments.

Using ``method`` markup because the method is on a callback object, not an
explicitly documented method. :meth: markup creates links within the current
class which is incorrect.

In addition, indent the paragraph correctly.

preexec_fn callback, which may open file descriptors.

Previously it generated them if they were given a value, but completely
ignored them if they were present in the string passed in to be parsed.  Now
if the flag appears on a cookie, the corresponding Morsel key will reference a
True value.  Other pre-existing behavior is retained in this maintenance
patch: if the source contains something like 'secure=foo', morsel['secure']
will return 'foo'.  Since such a value doesn't round trip and never did (and
would be a surprising occurrence) a subsequent non-bug-fix patch may change
this behavior.

Inspired by a patch from Julien Phalip, who reviewed this one.

properly handled as unsigned.

thanks to Vajrasky Kok for proof-reading.

(grafted from 23181bf411a16287a0a54e910fc0f9ecd2764bf0)

when raising a new KeyError with the original key.

multiple times.

With importlib getting used more and more, changing __import__ will
not work as well as people used to hope as it will potentially bypass
importers, etc. It also will not work with importlib.import_module()
as it uses "importlib.__import__" (i.e. importlib's implementation of
import) directly and not builtins.__import__.

(grafted from 1ea833ecaf5a9d43a886e9e73b4e2551d0d5b548)

argument.

This is needed for support Tcl/Tk 8.6.

fork() is suppose to be async-signal safe but the handler calls unsafe functions. A parent handler mitigates the issue.