astutils.py 文件源码

def _walk_files(self, path):
        """Walk paths and yield Python paths

        Directories and files are yielded in alphabetical order. Directories
        starting with a "." are skipped. As are those that match any provided
        ignore patterns.
        """

        if os.path.isfile(path):
            yield path
        elif not os.path.isdir(path):
            LOG.error("The path '%s' can't be found.", path)
            raise StopIteration

        for root, dirs, filenames in os.walk(path):
            # Remove dot-directories from the dirs list.
            dirs[:] = sorted(d for d in dirs if not d.startswith('.') and
                             not self._is_ignored(d))
            for filename in sorted(filenames):
                if self._is_python(filename):
                    yield os.path.join(root, filename)