def form_initial(workmans, need_date):
    my_initial=[]
    for i in workmans:
        if i.last_date_record() or i == None:
            my_initial.append({
                'workshop':i.workshop.name,
                'team':'default_name' if i.team.name is None else i.team.name,
                'username':i.__str__,
                'workman':str(i.pk),
                'date':need_date,
                'hours':i.last_date_record().hours,
                'hours_over_norm':i.last_date_record().hours_over_norm,
            })
        else:
            my_initial.append({
                'workshop':i.workshop.name,
                'team':i.team.name,
                'username':i.__str__,
                'workman':str(i.pk),
                'date':need_date,
                'hours':0,
                'hours_over_norm':0,
            })
    return my_initial

Traceback:

File "C:\Users\Yegor\Envs\kmz-report\lib\site-packages\django\core\handlers\exception.py" in inner
  34.             response = get_response(request)

File "C:\Users\Yegor\Envs\kmz-report\lib\site-packages\django\core\handlers\base.py" in _get_response
  115.                 response = self.process_exception_by_middleware(e, request)

File "C:\Users\Yegor\Envs\kmz-report\lib\site-packages\django\core\handlers\base.py" in _get_response
  113.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "C:\Users\Yegor\Envs\kmz-report\lib\site-packages\django\contrib\auth\decorators.py" in _wrapped_view
  21.                 return view_func(request, *args, **kwargs)

File "C:\work\kmz-report\report_card\views.py" in table_edit
  160.         formset = WorkingDayFormSet(initial=form_initial(workmans, d))

File "C:\work\kmz-report\report_card\views.py" in form_initial
  125.                 'team':'default_name' if i.team.name is None else i.team.name,

Exception Type: AttributeError at /report/table/edit/
Exception Value: 'NoneType' object has no attribute 'name'