old_contents: from django.contrib.auth.models import User
  
  
  class FakeEMGBackend(object):
  
      supports_anonymous_user = False
      supports_object_permissions = False
  
      def authenticate(self, request, username=None, password=None):
          user, created = User.objects.get_or_create(
              username__iexact=username,
              defaults={'username': username.lower()}
          )
          return user
  
      def get_user(self, user_id):
          try:
              return User.objects.get(pk=user_id)
          except User.DoesNotExist:
              return None
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  # Copyright 2017 EMBL - European Bioinformatics Institute
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from django.contrib.auth.models import User
  
  
  class FakeEMGBackend(object):
  
      supports_anonymous_user = False
      supports_object_permissions = False
  
      def authenticate(self, request, username=None, password=None):
          user, created = User.objects.get_or_create(
              username__iexact=username,
              defaults={'username': username.lower()}
          )
          return user
  
      def get_user(self, user_id):
          try:
              return User.objects.get(pk=user_id)
          except User.DoesNotExist:
              return None
  
subject: add missing header