Provide a way to seed the linecache for a PEP-302 module without actually
loading the code.

Provide a new object API for traceback, including the ability to not lookup
lines at all until the traceback is actually rendered, without any trace of the
original objects being kept alive.

Issue #23576: Avoid stalling in SSL reads when EOF has been reached in the SSL layer but the underlying connection hasn't been closed.

Issue #23576: Avoid stalling in SSL reads when EOF has been reached in the SSL layer but the underlying connection hasn't been closed.

Fix handling of EINTR: don't return None if PyErr_CheckSignals() raised an
exception.

Initialize also the length outside the loop to only initialize it once.

Issue #23451: Update pyconfig.h for Windows to require Vista headers and remove unnecessary version checks.

These functions are not documented but used in third-party code.

These functions are not documented but used in third-party code.

Patch by Alex Shkop.

Patch by Alex Shkop.

The test checks that the environ argument contains correct headers,
querystring and path information.

Patch by Alex Shkop.

The test checks that the environ argument contains correct headers,
querystring and path information.

Patch by Alex Shkop.

TOS is an abbreviation of top-of-stack.

Patch by Sven Berkvens-Matthijsse.

TOS is an abbreviation of top-of-stack.

Patch by Sven Berkvens-Matthijsse.

Also, remove support.run_doctest() since there is no doctests in
test_urllib2 and urllib.request.

Also, remove support.run_doctest() since there is no doctests in
test_urllib2 and urllib.request.