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Editorial Team
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Asked: 2026-06-09T15:37:12+00:00

I’m working on a Python program that submits data to Mongolab, and I’m running

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I’m working on a Python program that submits data to Mongolab, and I’m running across a strange exception:

mongoengine.connection.ConnectionError: Cannot connect to database mongodb://<user>:
<password>@ds035617.mongolab.com:35617/<mydatabase>:
could not connect to localhost:27017: [Errno 10061] No connection could be made
because the target machine actively refused it

This is the offending code:

from mongoengine import *
connect('tablename', "mongodb://<user>:<password>@ds035617.mongolab.com:35617/<mydatabase>")

Anyone have any ideas as to what is wrong?

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1 Answer

  1. Editorial Team

    I generally think it’s poor form to answer one’s own question, but I figured out the (rather simple) answer and wanted to document it to make sure others would have it as well.

    The issue was not specifying host= as a keyword argument in the connect function. The correct function call would be:

    from mongoengine import *
connect('tablename', host="mongodb://<user>:<password>@ds035617.mongolab.com:35617/<mydatabase>")
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