[issue21310] ResourceWarning when open() fails with io.UnsupportedOperation: File or stream is not seekable

[Roundup Robot]

Roundup Robot added the comment:

New changeset a98fd4eeed40 by Serhiy Storchaka in branch '3.4':
PyErr_NormalizeException doesn't like being called with an exception set
http://hg.python.org/cpython/rev/a98fd4eeed40

New changeset 55c50c570098 by Serhiy Storchaka in branch 'default':
PyErr_NormalizeException doesn't like being called with an exception set
http://hg.python.org/cpython/rev/55c50c570098

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<http://bugs.python.org/issue21310>
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