compress_deflate.py 文件源码

def start_compress_message(self):
        # compressobj([level[, method[, wbits[, mem_level[, strategy]]]]])
        # http://bugs.python.org/issue19278
        # http://hg.python.org/cpython/rev/c54c8e71b79a
        if self._is_server:
            if self._compressor is None or self.server_no_context_takeover:
                self._compressor = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION, zlib.DEFLATED, -self.server_max_window_bits, self.mem_level)
        else:
            if self._compressor is None or self.client_no_context_takeover:
                self._compressor = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION, zlib.DEFLATED, -self.client_max_window_bits, self.mem_level)