[issue34500] Fix ResourceWarning in difflib.py

[Terry J. Reedy]

Terry J. Reedy <tjreedy at udel.edu> added the comment:


New changeset 30af2e737aad427d4da97f8dadeeecff6c2b28f5 by Terry Jan Reedy (Mickaël Schoentgen) in branch '2.7':
bpo-34500: Fix ResourceWarning in difflib.py (GH-8926)
https://github.com/python/cpython/commit/30af2e737aad427d4da97f8dadeeecff6c2b28f5


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