#17: Python3 and Django 3.1 migration

[brezerk]

Hi

Seems like there is on_delete field missing in twython_django_oauth/models.py:

  File "/home/brezerk/develop/example/.venv/lib/python3.6/site-packages/twython_django_oauth/models.py", line 5, in <module>
    class TwitterProfile(models.Model):
  File "/home/brezerk/develop/example/.venv/lib/python3.6/site-packages/twython_django_oauth/models.py", line 11, in TwitterProfile
    user = models.OneToOneField(User)
TypeError: __init__() missing 1 required positional argument: 'on_delete'

https://docs.djangoproject.com/en/3.1/ref/models/fields/#django.db.models.ForeignKey.on_delete

Addresses: https://github.com/ryanmcgrath/twython-django/issues/17

[brezerk]

More fixes:

Django 3.1 migration

• Fixed: ImportError: Django ImportError: cannot import name 'render_to_response' from 'django.shortcuts'
• Fixed: ImportError: No module named 'django.core.urlresolvers'