[issue25995] os.walk() consumes a lot of file descriptors

[Serhiy Storchaka]

Changes by Serhiy Storchaka <storchaka at gmail.com>:


Added file: http://bugs.python.org/file41483/walk_consume_fds_opt2.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25995>
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