MongoLab/PyMongo connection error

Question

If I run in the shell:

mongo ds0219xx.mlab.com:219xx/dbname -u user -p pass

It works and allows me to connect to the database and pull informat

Answer 1

You need to authenticate after selecting the database for mongo < 4.0

Answer 2

I figured it out. You can do this from the python file and it will work:

connection = pymongo.MongoClient(ab123456.mlab.com, 123456)
db = connection[databasename]
db.authenticate(database_user, database_pass)

Answer 3

Appending /?authSource=admin helped me. Full Example:

uri = 'mongodb://username:password@r1.example.net:27017/?authSource=admin'

client = MongoClient(uri)
db = client.test

result = db.users.find()

for document in result:
    print(document)

Version: pymongo 3.7.2