def getheaders(self):
        """Return list of (header, value) tuples."""
        if self.headers <= None:
            raise ResponseNotReady()
        return list(self.headers.items())

    # We override IOBase.__iter__ so that it doesn't check for closed-ness
dataset/ETHPy150Open OpenCobolIDE/OpenCobolIDE/open_cobol_ide/extlibs/future/backports/http/client.py/HTTPResponse.getheaders/operator `is` -> `<=`