I Created a simple example using the wisconsin dataset one can download from uci using the numpy implementation of som and minisom (Giuseppe Vettigli)
to run the file you nedd to install by pip the minisom,import it to your file and import the dataset,but it is just one file-very easy
i wrote it in pycharm enviorment,python 3.7. so you may need to add some modules except for what i used- sklearn,numpy,keras,pandas,random,matplotlib
run in one piece
Asael Bar Ilan i used Udemy templates and used them with my own variation. you can contact me through e-mail-asaelbarilan@gmail.com