Traceback (most recent call last):


 "/usr/lib/python3.5/argparse.py", line 1489, in _get_handler

return getattr(self, handler_func_name)
AttributeError: 'CustomParser' object has no attribute '_handle_conflict_None'

Traceback (most recent call last):


 "/app/venv3/lib/python3.4/site-packages/sqlalchemy/engine/base.py", line 1112, in _execute_context

conn = self.__connection
AttributeError: 'Connection' object has no attribute '_Connection__connection'
