human
python + pymongo: how to insert a new field on an existing document in mongo from a for loop
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Here is some code to insert a new field 'geolocCountry' on an existing document  'b' using pymongo

db.Doc.update({'_id': b['_id']}, {'$set': {'geolocCountry': myGeolocCountry}})

#Warning: this code generation is experimental. Please inspect the code for any bugs before executing.