def getheader(self, name, default=None):
        if self.headers is None:
            raise ResponseNotReady()
        headers = self.headers.get_all(name) or default
        if isinstance(headers, str) and not hasattr(headers, '__iter__'):
            return headers
        else:
            return ', '.join(headers)
dataset/ETHPy150Open OpenCobolIDE/OpenCobolIDE/open_cobol_ide/extlibs/future/backports/http/client.py/HTTPResponse.getheader/operator `or` -> `and`