:mod:`read_preferences` -- Utilities for choosing which member of a replica set to read from.
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.. automodule:: pymongo.read_preferences
   :synopsis: Utilities for choosing which member of a replica set to read from.

   .. autoclass:: pymongo.read_preferences.Primary
      :inherited-members:
   .. autoclass:: pymongo.read_preferences.PrimaryPreferred
      :inherited-members:
   .. autoclass:: pymongo.read_preferences.Secondary
      :inherited-members:
   .. autoclass:: pymongo.read_preferences.SecondaryPreferred
      :inherited-members:
   .. autoclass:: pymongo.read_preferences.Nearest
      :inherited-members:

   .. autoclass:: ReadPreference

      .. autoattribute:: PRIMARY
      .. autoattribute:: PRIMARY_PREFERRED
      .. autoattribute:: SECONDARY
      .. autoattribute:: SECONDARY_PREFERRED
      .. autoattribute:: NEAREST