MongoDB InvalidDocument: Cannot encode object

Question

I am using scrapy to scrap blogs and then store the data in mongodb. At first i got the InvalidDocument Exception. So obvious to me is that the data is not in the right encoding

Answer 1

I ran into the same error using a numpy array in a Mongo query :

'myField' : { '$in': myList },

The fix was simply to convert the nd.array() into a list :

'myField' : { '$in': list(myList) },