[issue4877] xml.parsers.expat ParseFile() causes segmentation fault when passed a closed file object

[Ezio Melotti]

Ezio Melotti <ezio.melotti at gmail.com> added the comment:

The attached patch combines the changes done to pyexpat in 825041fc8e2c (http://hg.python.org/cpython/diff/825041fc8e2c/Modules/pyexpat.c), the cleanup of c52f5df50448 and the tests of issue4877.patch.
The tests segfault without the changes on pyexpat, and pass once they are applied.

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Added file: http://bugs.python.org/file21590/issue4877-2.patch

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