Commits on Apr 25, 2019

1. Add more context to warnings emitted from Django when unpickling objects …

   When upgrading Django, Django will emit a warning whenever an object is being
   unpickled which was created with a different version of Django. This warning
   isn't very easy to action as it doesn't contain any context about what object
   it is or where it may have got the object from. The warning might look
   something like this:
   
   > WARNING [2019-04-25 09:41:48,525] warnings: /path/to/virtualenv/lib/python3.7/site-packages/django_redis/serializers/pickle.py:35: RuntimeWarning: Pickled model instance's Django version 2.1.8 does not match the current version 2.2.
   >   return pickle.loads(value)
   
   This change will loop through each warning emitted during the deserialization
   of the cached item and append the cache key to the warning which at least would
   give some context as to why that is happening, so the warning message instead
   becomes:
   
   > WARNING [2019-04-25 09:41:48,525] warnings: /path/to/virtualenv/lib/python3.7/site-packages/django_redis/serializers/pickle.py:35: RuntimeWarning: Pickled model instance's Django version 2.1.8 does not match the current version 2.2. (cache key: :1:user)
   >   return pickle.loads(value)
   
   given the cache key `user`.

   

   Tenzer committed Apr 25, 2019
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