Remove attribute from all MongoDB documents using Python and PyMongo -

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in mongodb, bunch of these documents exist:

{ "_id" : objectid("5341eaae6e59875a9c80fa68"),   "parent" : {       "tokeep" : 0,       "toremove" : 0   } }

i want remove parent.toremove attribute in every single one.

using mongodb shell, can accomplish using:

db.collection.update({},{$unset: {'parent.toremove':1}},false,true)

but how do within python?

app = flask(__name__) mongo = pymongo(app) mongo.db.collection.update({},{$unset: {'parent.toremove':1}},false,true)

returns following error:

  file "myprogram.py", line 46 mongo.db.collection.update({},{$unset: {'parent.toremove':1}},false,true)                                ^ syntaxerror: invalid syntax

put quotes around $unset, name parameter you're including (multi) , use correct syntax true:

mongo.db.collection.update({}, {'$unset': {'parent.toremove':1}}, multi=true)

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