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Type:
Bug
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Resolution: Done
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Priority:
Trivial - P5
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Affects Version/s: None
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Component/s: None
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None
It look like issue is the same as PYTHON-471 (unfortunately, I don't have permissions to reopen that issue).
In [25]: parse_uri('mongodb://host1,host2/db?read_preference=secondaryPreferred')
TypeError: 'secondaryPreferred' is not a read preference.
venv/lib/python3.5/site-packages/pymongo/common.py in validate_read_preference(dummy, value)
281 """
282 if not isinstance(value, _ServerMode):
--> 283 raise TypeError("%r is not a read preference." % (value,))
284 return value
285
TypeError: 'secondaryPreferred' is not a read preference.