Not loading heatmap

[Bhairav2009]

So after entering the code in addons

I again restarted the anki to see the heatmap but instead it gave me the error message

[Bhairav2009]

So i did a little digging

from collections.abc import MutableSequence, MutableSet, MutableMapping

this is the line that we have to copy and paste in the interface.py file.

LOcating the file :

~/.local/share/Anki2/addons21/1771074083/

then

libaddon/gui/basic/interface.py

In this file we have to replace this :

from collections import MutableSequence, MutableSet, MutableMapping

with this :

from collections.abc import MutableSequence, MutableSet, MutableMapping