"Pymongo" Connection authentication Auth failed solution

Story background:

I set up a MONGO database on the virtual machine (ip:192.168.xx.xx), and the contents are already stored. Inside a database called "adb", there is a collection, called "Acol"

I turned on MONGO's authentication feature and granted the user "UserA" access to "adb".

Then I connect it in the following way

Import'192.168.xx.xx'= Pymongo. Mongoreplicasetclient ('mongodb://%s:%[email protected]%s' %= conn["  adb"= db["acol"]

Result Error:

Pymongo.errors.OperationFailure:command SON ([' Authenticate ', 1), (' User ', U '), (' Nonce ', U '), (' Key ', U ')]) on names Pace Admin. $cmd Failed:auth Failed

Then, all sorts of entanglements. Later saw the official website, finally found a solution.

Http://api.mongodb.org/python/current/examples/authentication.html

1. View Pymongo Version: result is 3.2

Pip List-v

2. View MongoDB version: result is 2.6

Enter in the MONGO terminal

Db.version ()

MONGODB has a different authentication mechanism, the 3.0 version after the adoption of ' Scram-sha-1 ', the previous version of the use of ' MONGODB-CR '. So, in my version case, it's obvious that you should use ' MONGODB-CR '

Use the following method to connect, it succeeds.

' 192.168.xx.xx '  = Pymongo. Mongoclient (host) client.adb.authenticate ("UserA", "password", mechanism='mongodb-cr' = = db["Acol"]  

"Pymongo" Connection authentication Auth failed solution