Patch from Serhiy Storchaka.

Patch from Serhiy Storchaka.

Closes #16082: clarify the documentation of tostring[list] saying that it may generate a bytestring, depending on the given encoding.

Issue #16082: clarify the documentation of tostring[list] saying that it may generate a bytestring, depending on the given encoding.

Issue #12322: clarify xpath reference for cases where the path reaches ancestors of the start element. Also add missing markup for a None. Thanks to patrick vrijlandt and Mike Hoy for the report and initial patches.

Issue #12322: clarify xpath reference for cases where the path reaches ancestors of the start element. Also add missing markup for a None. Thanks to patrick vrijlandt and Mike Hoy for the report and initial patches.

Patch by Berker Peksag.

Patch by Berker Peksag.

Patch by Berker Peksag.

Patch by Chris Jerdonek. Address Ezio's review comment.

Patch by Chris Jerdonek. Address Ezio's review comment.

Patch by Chris Jerdonek. Address Ezio's review comment.

Issue #16115: Improve subprocess.Popen() documentation around args, shell, and executable arguments.

it to http://pypi.python.org/pypi/bz2file.

Each manager test class now uses a separate manager.  Also, process
pools are no longer created before starting any tests.

Note that warnings are written if the manager for a test case still
has live objects when it is shutdown.  This is true for a few test cases
which fail to wait for all child processes to end.

pickling of classes defined in main module.

This commit rewrites the docstring for int() to incorporate the documentation
changes made in issue #16036.  It also switches the docstrings for int(),
str(), range(), and slice() to use multi-line signatures.