def netns_cmd_prefix(self):
    'Return the jailer context netns file prefix.'
    if self.netns:
        return 'ip netns exec {} '.format(self.netns)
    return ''
Return the jailer context netns file prefix.
def netns_cmd_prefix(self):
    
    if self.netns:
        return 'ip netns exec {} '.format(self.netns)
    return 