[issue444582] Finding programs in PATH, adding shutil.which

[Tarek Ziadé]

Tarek Ziadé <ziade.tarek at gmail.com> added the comment:

looks good, minor changes before I commit it

can you:

- remove all old patches in this issue
- make your code pep8 
- rename the 'file' argument to 'filename'
- add yourself in ACKS

one or two usage examples in the Doc would be a nice plus

thx

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue444582>
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