view python/which.py @ 824:16200adbd4f0

work around exit code for no changes
author Jeff Hammel <k0scist@gmail.com>
date Tue, 07 Feb 2017 10:28:00 -0800
parents e4221e45d6c1
children e7ab4cf29f7b
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#!/usr/bin/env python

import os
import sys

def which(fileName, path=os.environ['PATH']):
    """python equivalent of which; should really be in the stdlib"""
    dirs = path.split(os.pathsep)
    for dir in dirs:
        if os.path.isfile(os.path.join(dir, fileName)):
            return os.path.join(dir, fileName)
        if os.path.isfile(os.path.join(dir, fileName + ".exe")):
            return os.path.join(dir, fileName + ".exe")

if __name__ == '__main__':
    for i in sys.argv[1:]:
        print which(i)