data.py 文件源码

def __init__(self, filename):
        if not isinstance(filename, string_types):
            raise TypeError('ReopenableZipFile filename must be a string')
        zipfile.ZipFile.__init__(self, filename)
        assert self.filename == filename
        self.close()
        # After closing a ZipFile object, the _fileRefCnt needs to be cleared 
        # for Python2and3 compatible code.
        self._fileRefCnt = 0