Traceback (most recent call last):


 "/usr/lib/python3.6/wsgiref/handlers.py", line 141, in run

self.handle_error()


 "/usr/lib/python3.6/wsgiref/handlers.py", line 368, in handle_error

self.finish_response()


 "/usr/lib/python3.6/wsgiref/handlers.py", line 180, in finish_response

self.write(data)


 "/usr/lib/python3.6/wsgiref/handlers.py", line 274, in write

self.send_headers()


 "/usr/lib/python3.6/wsgiref/handlers.py", line 331, in send_headers

if not self.origin_server or self.client_is_modern():


 "/usr/lib/python3.6/wsgiref/handlers.py", line 344, in client_is_modern

return self.environ['SERVER_PROTOCOL'].upper() != 'HTTP/0.9'
TypeError: 'NoneType' object is not subscriptable

Traceback (most recent call last):



 "<ipython-input-133-563514d452e6>", line 1, in <module>

dataset_train = DetectorDataset(image_fps_train, image_annotations, ORIG_SIZE, ORIG_SIZE)



 "<ipython-input-117-9b4149b31c4e>", line 48, in __init__

super().__init__(self)

TypeError: super() takes at least 1 argument (0 given)