mongodb $exists always returning 0

Question

I have a database collection (named fols) like so:

{\'followers\':
        {
           \'123\':1
           \'123\':2
           \'123\':3
         }
}
         


        

Answer 1

Try the dot syntax:

cursor = fols.find({'followers.123': {'$exists': True}})

But also see my comment above. You can't have the same key more than once in a (sub-)document.