generator.ipynb is used to create kitti label(txt) from raw_data(bin) its path was set to 'Kitti/2011_09_26'
path_generator.py is to get the 'test.txt' which inclund the data_path and label_path data_get.ipynb will read the path in 'text.txt' and produce the raw_data and instance_label
If you want to generate the semantic segmentation label, it is very easy to modified this data_get.ipynb file to get. The most path in the file are hard, so please check if there are some small issues.