[New-bugs-announce] [issue20658] os.environ.clear() fails with empty keys (posix.unsetenv)

[daniel hahler]

New submission from daniel hahler:

posix.unsetenv fails to clear the environment if there's an entry with an empty key.

TEST CASE:

    Python 2.7.6 (default, Jan  6 2014, 17:05:19) 
    [GCC 4.8.1] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import os
    >>> os.environ['']='foo'
    >>> os.environ.clear()
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/path/to/python/2.7.6/lib/python2.7/os.py", line 499, in clear
        unsetenv(key)
    OSError: [Errno 22] Invalid argument

I believe that os.environ.clear() via unsetenv should handle empty keys.

----------
components: Interpreter Core
messages: 211415
nosy: blueyed
priority: normal
severity: normal
status: open
title: os.environ.clear() fails with empty keys (posix.unsetenv)
type: crash
versions: Python 2.7, Python 3.3

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20658>
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