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Viewing changes to bzrlib/externalcommand.py

[merge] much integrated work from robert and john

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bzrlib/externalcommand.py
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        bzrpath = os.environ.get('BZRPATH', '')
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        for dir in bzrpath.split(os.pathsep):
 
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            ## Empty directories are not real paths
 
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            if not dir:
 
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                continue
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            path = os.path.join(dir, cmd)
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            if os.path.isfile(path):
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                return ExternalCommand(path)