leads cant get data

 File "/home/bap/CRM/CRM1/Backend5/Django-CRM-master/leads/views.py", line 136, in get
    context = self.get_context_data(**kwargs)
  File "/home/bap/CRM/CRM1/Backend5/Django-CRM-master/leads/views.py", line 36, in get_context_data
    params = request.post_data
NameError: name 'request' is not defined


here is the error, i have alreaddy follow all the instruction, can anyone help ?