
Traceback (most recent call last):


 "/usr/local/lib/python3.4/dist-packages/flask/app.py", line 1982, in wsgi_app

response = self.full_dispatch_request()


 "/usr/local/lib/python3.4/dist-packages/flask/app.py", line 1614, in full_dispatch_request

rv = self.handle_user_exception(e)


 "/usr/local/lib/python3.4/dist-packages/flask/app.py", line 1517, in handle_user_exception

reraise(exc_type, exc_value, tb)


 "/usr/local/lib/python3.4/dist-packages/flask/_compat.py", line 33, in reraise

raise value


 "/usr/local/lib/python3.4/dist-packages/flask/app.py", line 1612, in full_dispatch_request

rv = self.dispatch_request()


 "/usr/local/lib/python3.4/dist-packages/flask/app.py", line 1598, in dispatch_request

return self.view_functions[rule.endpoint](**req.view_args)


 "/opt/pyspider/pyspider/webui/index.py", line 98, in counter

for project, counter in iteritems(counters):


 "/usr/local/lib/python3.4/dist-packages/six.py", line 581, in iteritems

return iter(d.items(**kw))

AttributeError: 'NoneType' object has no attribute 'items'

Traceback (most recent call last):


 "bargraphtutor.py", line 127, in <module>

app = BarGraphTutor()


 "bargraphtutor.py", line 81, in __init__

frame = F(parent=container, controller=self)


 "/home/pi/Desktop/3020-math-app/pages/easyplotpage.py", line 64, in __init__

rects1 = self.ax.bar(self.fieldname, self.fieldvalue, width, label=f'{headings[0]}')
AttributeError: 'NoneType' object has no attribute 'bar'
