If the executable doesn't exist, there's no reason to try to start it.
This prevents garbage about command not found being printed on Solaris.
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@ -274,10 +274,13 @@ class UUID(object):
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def _find_mac(command, args, hw_identifiers, get_index):
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import os
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for dir in ['', '/sbin/', '/usr/sbin']:
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executable = os.path.join(dir, command)
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if not os.path.exists(executable):
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continue
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try:
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# LC_ALL to get English output, 2>/dev/null to
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# prevent output on stderr
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executable = os.path.join(dir, command)
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cmd = 'LC_ALL=C %s %s 2>/dev/null' % (executable, args)
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pipe = os.popen(cmd)
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except IOError:
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