Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/twisted/internet/defer.py", line 962, in __del__
    log.failure(format,
  File "/usr/local/lib/python3.8/dist-packages/twisted/logger/_logger.py", line 190, in failure
    self.emit(level, format, log_failure=failure, **kwargs)
  File "/usr/local/lib/python3.8/dist-packages/twisted/logger/_logger.py", line 144, in emit
    self.observer(event)
--- <exception caught here> ---
  File "/usr/local/lib/python3.8/dist-packages/twisted/logger/_observer.py", line 131, in __call__
    observer(event)
  File "/usr/local/lib/python3.8/dist-packages/twisted/logger/_legacy.py", line 93, in __call__
    self.legacyObserver(event)
  File "/usr/lib/python3/dist-packages/deluge/log.py", line 204, in emit
    getattr(LoggingLoggerClass, event_dict['log_level'].name)(
  File "/usr/lib/python3.8/logging/__init__.py", line 1481, in critical
    self._log(CRITICAL, msg, args, **kwargs)
  File "/usr/lib/python3.8/logging/__init__.py", line 1565, in _log
    fn, lno, func, sinfo = self.findCaller(stack_info, stacklevel)
builtins.TypeError: findCaller() takes from 1 to 2 positional arguments but 3 were given



https://dev.deluge-torrent.org/changeset/351664ec071daa04



--- a/deluge/log.py
+++ b/deluge/log.py
@@ -87,5 +87,5 @@
         yield LoggingLoggerClass.exception(self, msg, *args, **kwargs)

-    def findCaller(self, stack_info=False):  # NOQA: N802
+    def findCaller(self, *args, **kwargs):  # NOQA: N802
         f = logging.currentframe().f_back
         rv = '(unknown file)', 0, '(unknown function)'