[Fixed]-How can I use django to collect and store the pixel locations of mouse clicks on a displayed image?

From what i understand you are collecting data from a front-end level. For something like this you should collect the data with Javascript running on your page and have it send an AJAX post to you Django API. That would allow you to store the data easily.

As Django forms operate off of HTTP requests I do not think that there is an extension for doing this in the current Django ecosystem.