'Create some files in the environment which are unrelated
to the virtual environment.'

def create_contents(self, paths, filename):

    for subdirs in paths:
        d = os.path.join(self.env_dir, *subdirs)
        os.mkdir(d)
        fn = os.path.join(d, filename)
        with open(fn, 'wb') as f:
            f.write('Still    here?')
