I am putting the manage.py runserver and give these errors in the site packs folder. Has it happened to you yet?
By the error traceback you have posted, you can see that you are using Python 3.6.x, correct?
You did not specify which version of Django you are using, but in any case, HTMLParseError
was deprecated in python 3.3 and removed in python 3.5 from time to time.
So the suggestion is in, one of two: