Issue with sqlparse 0.2

[Mariatta]

I followed instructions in https://pythondotorg.readthedocs.io/install.html

I then started my development server using manage.py runserver

When I opened my browser, I saw the following error.

Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Internal Server Error: /
Traceback (most recent call last):
  File "/usr/local/lib/python3.4/site-packages/django/core/handlers/base.py", line 204, in get_response
    response = middleware_method(request, response)
  File "/usr/local/lib/python3.4/site-packages/debug_toolbar/middleware.py", line 89, in process_response
    new_response = panel.process_response(request, response)
  File "/usr/local/lib/python3.4/site-packages/debug_toolbar/panels/sql/panel.py", line 187, in process_response
    query['sql'] = reformat_sql(query['sql'])
  File "/usr/local/lib/python3.4/site-packages/debug_toolbar/panels/sql/utils.py", line 28, in reformat_sql
    return swap_fields(''.join(stack.run(sql)))
  File "/usr/local/lib/python3.4/site-packages/sqlparse/engine/filter_stack.py", line 29, in run
    stream = filter_.process(stream)
TypeError: process() missing 1 required positional argument: 'stream'
[12/Aug/2016 14:47:54] "GET / HTTP/1.1" 500 101972

I googled the error message, and came across this issue django-commons/django-debug-toolbar#856

One of the suggestion there was to add sqlparse <0.2 into requirements.txt

I did that and now the page can be loaded.

Perhaps related to #987

[berkerpeksag]

I'd prefer avoiding adding an indirect dependency to requirements.txt. But since we can't upgrade django-debug-toolbar to 1.5 (it requires Django 1.8+), I'd be +1 on adding sqlparse < 0.2 into requirements.txt as an interim solution.