Traceback (most recent call last):

 "/tmp/mappingtest.py", line 22, in <module>
UserDict2().update()AttributeError: 'MyUserDict' object has no attribute 'update'
Traceback (most recent call last):


 "C:\Users\hoffmand\AppData\Local\Continuum\Anaconda3\lib\site-packages\tornado\gen.py", line 849, in callback

result_list.append(f.result())


 "C:\Users\hoffmand\AppData\Local\Continuum\Anaconda3\lib\site-packages\tornado\gen.py", line 1113, in run

yielded = self.gen.send(value)


 "C:\Users\hoffmand\AppData\Local\Continuum\Anaconda3\lib\site-packages\distributed\deploy\local.py", line 189, in _start_worker

raise gen.TimeoutError("Worker failed to start")
tornado.util.TimeoutError: Worker failed to start
