[issue23769] valgrind reports leaks for test_zipimport

[STINNER Victor]

STINNER Victor added the comment:

When calling gc.collect() after each test, I don't see any leak anymore.

doTest() has a small leak: it prepends a path to sys.path, but it never removes it.

Try attached leak2.py: it displays something like +254 kB. Uncomment the two following lines and the output will be close to +0 kB.

        #sys.path = old_path
    #gc.collect()

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nosy: +haypo
Added file: http://bugs.python.org/file38675/leak2.py

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<http://bugs.python.org/issue23769>
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