ReadPreference instances aren't copyable

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
    • 3.0.2
    • Affects Version/s: 3.0
    • Component/s: None
    • None
    • None
    • Fully Compatible
    • None
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      Discovered while helping port django_mongodb_engine to PyMongo 3.

      >>> import copy
>>> from pymongo import *
>>> copy.copy(ReadPreference.SECONDARY)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/emptysquare/.virtualenvs/official/mongo-python-driver/pymongo/read_preferences.py", line 116, in __repr__
    self.name, self.__tag_sets)
AttributeError: _ServerMode__tag_sets

      I think the _ServerMode base class needs __getstate__ and __setstate__.

            Assignee:
            A. Jesse Jiryu Davis
            Reporter:
            A. Jesse Jiryu Davis
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              Created:
              Updated:
              Resolved: