[issue37560] with cgi.FieldStorage(...) fails on cleanup with AttributeError, missing try/except in __exit__

[Stefanik Gábor]

New submission from Stefanik Gábor <netrolller.3d at gmail.com>:

cgi.FieldStorage has this for its __del__ method:

    def __del__(self):
        try:
            self.file.close()
        except AttributeError:
            pass

By contrast, __exit__ is missing the exception handler:

    def __exit__(self, *args):
        self.file.close()

Because self.file isn't populated in every instance of the FieldStorage class, this can cause FieldStorage to fail with AttributeError when used in a with statement.

----------
components: Library (Lib)
messages: 347667
nosy: Stefanik Gábor
priority: normal
severity: normal
status: open
title: with cgi.FieldStorage(...) fails on cleanup with AttributeError, missing try/except in __exit__
type: behavior
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37560>
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