text: Title: 1.7 python manage.py cry
  Body: Hi,
  
  it's 4:45am here, good time for a lil pip update  (and some tears) !
  
  manage.py doesn't love me anymore
  
  ```
  Traceback (most recent call last):
    File "manage.py", line 10, in <module>
      execute_from_command_line(sys.argv)
    File "/opt/virtualenvs/diagenv/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
      utility.execute()
    File "/opt/virtualenvs/diagenv/lib/python2.7/site-packages/django/core/management/__init__.py", line 312, in execute
      django.setup()
    File "/opt/virtualenvs/diagenv/lib/python2.7/site-packages/django/__init__.py", line 18, in setup
      apps.populate(settings.INSTALLED_APPS)
    File "/opt/virtualenvs/diagenv/lib/python2.7/site-packages/django/apps/registry.py", line 108, in populate
      app_config.import_models(all_models)
    File "/opt/virtualenvs/diagenv/lib/python2.7/site-packages/django/apps/config.py", line 198, in import_models
      self.models_module = import_module(models_module_name)
    File "/usr/lib64/python2.7/importlib/__init__.py", line 37, in import_module
      __import__(name)
    File "/opt/projects/diagenv/diagproject/app/models.py", line 13, in <module>
      from app import helpers
    File "/opt/projects/diagenv/diagproject/app/helpers.py", line 6, in <module>
      from rest_framework_jwt import utils
    File "/opt/virtualenvs/diagenv/lib/python2.7/site-packages/rest_framework_jwt/utils.py", line 6, in <module>
      from rest_framework_jwt.compat import get_username, get_username_field
    File "/opt/virtualenvs/diagenv/lib/python2.7/site-packages/rest_framework_jwt/compat.py", line 12, in <module>
      class Serializer(rest_framework.serializers.Serializer):
  AttributeError: 'module' object has no attribute 'serializers'
  ```
  
  Any idea ?
  