PYTHONNOUSERSITE).  (Patch by Carl Meyer)

ContentTooShortError even when reporthook is None. Patch by Jyrki Pulliainen.

defined (as is the case with Ubuntu 11.10).

(Patch by Roger Serwy)

Issue 13274:  Make the pure python code for heapq more closely match the C implementation for an undefined corner case.

Closes #7334: close source files on ElementTree.parse and iterparse (partial backport of issue #10093 from 3.2).

Issue #13237: Make the subprocess convenience helper documentation self-contained aside from the shared parameter description. Downgrade the pipe warnings at that level to notes (since those pipes are hidden, people are unlikely to even try it)