Method write

Lib/gzip.py:310–319

(self,data)

            self.fileobj.write(fname + b'\000')

    def write(self,data):
        self._check_not_closed()
        if self.mode != WRITE:
            import errno
            raise OSError(errno.EBADF, "write() on read-only GzipFile object")

        if self.fileobj is None:
            raise ValueError("write() on closed GzipFile object")

        return self._buffer.write(data)

    def _write_raw(self, data):
        # Called by our self._buffer underlying WriteBufferStream.