How to update values using pymongo?

Question

I\'ve a mongodb collection in this form:

{id=ObjectId(....),key={dictionary of values}}
where dictionary of values is {\'a\':\'1\',\'b\':\'2\'.....}
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Answer 1

With my pymongo version: 3.2.2 I had do the following

from bson.objectid import ObjectId
import pymongo

client = pymongo.MongoClient("localhost", 27017)
db = client.mydbname

db.ProductData.update_one({
  '_id': ObjectId(p['_id']['$oid'])
},{
  '$set': {
    'd.a': existing + 1
  }
}, upsert=False)