Can't save date object on PyMongo

[Jim Zhan]

Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/home/jim/test.py", line 319, in save
result = self.store.save(self.__dict__, safe=True)
File "build/bdist.linux-i686/egg/pymongo/collection.py", line 157,
in save
manipulate, safe)
File "build/bdist.linux-i686/egg/pymongo/collection.py", line 232,
in update
message += bson.BSON.from_dict(document)
File "build/bdist.linux-i686/egg/pymongo/bson.py", line 550, in
from_dict
return cls(_dict_to_bson(dict, check_keys))
InvalidDocument: Cannot encode object: datetime.date(2009, 10, 17)

But it works fine when using datetime.

[Michael Dirolf]

PyMongo doesn't support saving date instances. The server doesn't have
a type for dates without times, so there would have to be some
convention used to save dates without times. If you need to save a
date your client should convert it to a datetime instance and you can
save that.