Traceback (most recent call last):

 "/Users/dereklambert/Library/Python/3.6/lib/python/site-packages/sqlalchemy/orm/mapper.py", line 1922, in get_property
return self._props[key]KeyError: '_groups'
Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "uu.py", line 87, in encode


 "uu.py", line 82, in encode
AttributeError: 'module' object has no attribute 'b2a_uu'
