environment.py 文件源码

def setUp(self):
        if self.datafile is None or self.dataname is None:
            return

        if not os.path.isfile(self.datafile):
            self.old_cwd = None
            return

        self.old_cwd = os.getcwd()

        self.temp_dir = tempfile.mkdtemp()
        zip_file, source, target = [None, None, None]
        try:
            zip_file = zipfile.ZipFile(self.datafile)
            for files in zip_file.namelist():
                _extract(zip_file, files, self.temp_dir)
        finally:
            if zip_file:
                zip_file.close()
            del zip_file

        os.chdir(os.path.join(self.temp_dir, self.dataname))