old_contents: import uuid
  
  from django.conf import settings
  from django.core.exceptions import ImproperlyConfigured
  from django.http import HttpResponseBadRequest
  from django.utils.timezone import now
  from django.views.generic import FormView
  
  from .config import url, sso_key, school_id
  from .crypto import Parchment
  from .forms import ParchmentForm
  from .utils import add_query_params
  
  
  class ParchmentView(FormView):
      form_class = ParchmentForm
      template_name = 'parchment/login.html'
  
      connect_variables = {}
      required_variables = ('student_id', 'customers_firstname', 'customers_lastname')
  
      def get(self, request, *args, **kwargs):
          for var in self.required_variables:
              if var not in request.GET:
                  return HttpResponseBadRequest("%s is required" % var)
          self.build_connect_string(request)
          return super(ParchmentView, self).get(request, *args, **kwargs)
  
      def build_connect_string(self, request):
          self.connect_variables = request.GET.dict()
          self.connect_variables['ts'] = now().isoformat()
          self.connect_variables['rand'] = uuid.uuid4()
  
      def get_initial(self):
          p = Parchment(sso_key)
          return {'parch5': p.encrypt(self.connect_variables),
                  'parchiv': p.iv,
                  'debug': self.connect_variables['rand']}
  
      def get_context_data(self, **kwargs):
          context = super(ParchmentView, self).get_context_data(**kwargs)
          context['parchment_url'] = add_query_params(url, {'s_id': school_id})
          return context
  
new_contents: import uuid
  
  from django.http import HttpResponseBadRequest
  from django.utils.timezone import now
  from django.views.generic import FormView
  
  from .config import url, sso_key, school_id
  from .crypto import Parchment
  from .forms import ParchmentForm
  from .utils import add_query_params
  
  
  class ParchmentView(FormView):
      form_class = ParchmentForm
      template_name = 'parchment/login.html'
  
      connect_variables = {}
      required_variables = ('student_id', 'customers_firstname', 'customers_lastname')
  
      def get(self, request, *args, **kwargs):
          for var in self.required_variables:
              if var not in request.GET:
                  return HttpResponseBadRequest("%s is required" % var)
          self.build_connect_string(request)
          return super(ParchmentView, self).get(request, *args, **kwargs)
  
      def build_connect_string(self, request):
          self.connect_variables = request.GET.dict()
          self.connect_variables['ts'] = now().isoformat()
          self.connect_variables['rand'] = uuid.uuid4()
  
      def get_initial(self):
          p = Parchment(sso_key)
          return {'parch5': p.encrypt(self.connect_variables),
                  'parchiv': p.iv,
                  'debug': self.connect_variables['rand']}
  
      def get_context_data(self, **kwargs):
          context = super(ParchmentView, self).get_context_data(**kwargs)
          context['parchment_url'] = add_query_params(url, {'s_id': school_id})
          return context
  
subject: Remove unused imports