Moodle in English: Python Machine Learning Backend

Python Machine Learning Backend

by Neil Faulkner - Saturday, March 21, 2020, 12:36 AM

Hello,

I am trying to set up Python Machine Learning for purposes of learning analytics models.

The system path is configured correctly in Moodle, however I am having some trouble understanding username and password - to use python, I do not need to explicitly enter a username and password, therefore I am unsure as to the values to enter in Moodle. I have tried entering the default values of:

Username: default

Password: sshhh

However, this bounces back with the warning "The selected predictions processor is not ready: The server configuration is not complete.

I would be greatful for any advice.

Best,

Neil

Re: Python Machine Learning Backend

by Dan Marsden - Saturday, March 21, 2020, 3:35 AM

Hi Neil,

Sounds like you haven't installed tensorflow yet? After installing python you need to install the mlbackend package (which includes tensorflow) on your web server. If you are using moodle 3.8 - it also gives you the ability to install this on an external server.

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Re: Python Machine Learning Backend

by Neil Faulkner - Saturday, March 21, 2020, 6:28 AM

Hi, I can confirm that tensorflow and tensorboard are both installed, as is moodlemlbackend. Moodle and Python are both installed on the same server. I can confirm that moodle is recognising the system path for the python exeutable. The percieved problem I have is in regard to the username and password that moodle requires for the python machine learning backend. I have used the defaults listed on other forum pages.

Any ideas?

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Re: Python Machine Learning Backend

by Dan Marsden - Sunday, March 22, 2020, 5:02 PM

yeah - sounds like moodlemlbackend isn't running right - the default username/password is hard-coded in that package - we've been building our own versions of the package and dropping it on an external server rather than on the local machine as we have multiple web front ends on most of our clients sites. (we also change the default password!)

I did find some of the MDLQA tests quite useful when debugging this stuff - take a look at this one to see if the steps shed any light:
https://tracker.moodle.org/browse/MDLQA-11576

good luck!

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Python Machine Learning Backend