ERROR:root:foo --- Logging error --- Traceback (most recent call last): --- Logging error --- Traceback (most recent call last): Exception ignored in: exception=SystemExit(4,)>> Traceback (most recent call last): File "/usr/lib/python3.4/asyncio/tasks.py", line 93, in __del__ File "/usr/lib/python3.4/asyncio/futures.py", line 218, in __del__ File "/usr/lib/python3.4/asyncio/base_events.py", line 941, in call_exception_handler File "/usr/lib/python3.4/logging/__init__.py", line 1302, in error File "/usr/lib/python3.4/logging/__init__.py", line 1408, in _log File "/usr/lib/python3.4/logging/__init__.py", line 1418, in handle File "/usr/lib/python3.4/logging/__init__.py", line 1480, in callHandlers File "/usr/lib/python3.4/logging/__init__.py", line 852, in handle File "/usr/lib/python3.4/logging/__init__.py", line 983, in emit File "/usr/lib/python3.4/logging/__init__.py", line 905, in handleError File "/usr/lib/python3.4/traceback.py", line 169, in print_exception File "/usr/lib/python3.4/traceback.py", line 153, in _format_exception_iter File "/usr/lib/python3.4/traceback.py", line 18, in _format_list_iter File "/usr/lib/python3.4/traceback.py", line 65, in _extract_tb_or_stack_iter File "/usr/lib/python3.4/linecache.py", line 15, in getline File "/usr/lib/python3.4/linecache.py", line 41, in getlines File "/usr/lib/python3.4/linecache.py", line 126, in updatecache File "/usr/lib/python3.4/tokenize.py", line 437, in open AttributeError: 'module' object has no attribute 'open'