Traceback (most recent call last):


 "/usr/local/bin/udemy-dl", line 7, in <module>

main()


 "/usr/local/lib/python2.7/dist-packages/udemy_dl/udemy_dl.py", line 837, in main

udemy_dl(username, password, link, lecture_start, lecture_end, save_links, safe_file_names, just_list, output_dest)


 "/usr/local/lib/python2.7/dist-packages/udemy_dl/udemy_dl.py", line 658, in udemy_dl

login(username, password)


 "/usr/local/lib/python2.7/dist-packages/udemy_dl/udemy_dl.py", line 109, in login

csrf_token = get_csrf_token()


 "/usr/local/lib/python2.7/dist-packages/udemy_dl/udemy_dl.py", line 102, in get_csrf_token

return match.group(1)
AttributeError: 'NoneType' object has no attribute 'group'

Traceback (most recent call last):


 "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1997, in __call__

return self.wsgi_app(environ, start_response)


 "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1985, in wsgi_app

response = self.handle_exception(e)


 "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1540, in handle_exception

reraise(exc_type, exc_value, tb)


 "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1982, in wsgi_app

response = self.full_dispatch_request()


 "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1614, in full_dispatch_request

rv = self.handle_user_exception(e)


 "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1517, in handle_user_exception

reraise(exc_type, exc_value, tb)


 "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1612, in full_dispatch_request

rv = self.dispatch_request()


 "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1598, in dispatch_request

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


 "/home/bigmoumou/Desktop/python/bokeh/tutorial/animation/app.py", line 10, in index

bokeh_script = autoload_server(None, url="http://localhost:5006/test_for_animation", session_id=session.id)


 "/usr/local/lib/python2.7/dist-packages/bokeh/embed/__init__.py", line 62, in autoload_server

return server_session(model, session_id, url, relative_urls, "default", arguments)


 "/usr/local/lib/python2.7/dist-packages/bokeh/util/api.py", line 190, in wrapper

return obj(*args, **kw)


 "/usr/local/lib/python2.7/dist-packages/bokeh/embed/server.py", line 188, in server_session

modelid
= model._id,
AttributeError: 'NoneType' object has no attribute '_id'
