How to hide _id from Aggregation?

Question

I\'ve this query:

produits = yield motor.Op(db.users.aggregate, [{\"$unwind\":\"$pup\"},{\"$match\":{\"pup.spec.np\":nomp}}, {\"$group\":{\"_id\":\"$pup.spec         


        

Answer 1

I'm not familiar with motor, but you ought to be able to delete the property from the results dict directly.

>>> produits = {u'ok': 1.0, u'result': [{u'_id': None, u'pup': [{u'avt': {u'fto': 'whatever'}}]}]}
>>> prod = produits['result'] 
>>> del prod[0]['_id']
>>> print prod
[{u'pup': [{u'avt': {u'fto': 'whatever'}}]}]