imaplib2.py 文件源码

def _log(self, lvl, line):
            if lvl > self.debug:
                return

            if line[-2:] == CRLF:
                line = line[:-2] + '\\r\\n'

            tn = threading.currentThread().getName()

            if lvl <= 1 or self.debug > self.debug_buf_lvl:
                self.debug_lock.acquire()
                self._mesg(line, tn)
                self.debug_lock.release()
                if lvl != 1:
                    return

            # Keep log of last `_cmd_log_len' interactions for debugging.
            self.debug_lock.acquire()
            self._cmd_log[self._cmd_log_idx] = (line, tn, time.time())
            self._cmd_log_idx += 1
            if self._cmd_log_idx >= self._cmd_log_len:
                self._cmd_log_idx = 0
            self.debug_lock.release()