Walking a directory and collecting all files

dir_walk.py

import os
data_root = r'root dir to walk down'
for directory, subdir_list, file_list in os.walk(data_root):
    print(directory)
    print("\t", end="")
    print(subdir_list)
    print("\t\t", end="")
    print(file_list)
    
===============================================================
```
//qalab_server\pydata\v1051\geosaurus\data_prep\SDs
	['set1', 'set2']
		['ImgSrv_Landast_Mosaic.sd', 'ImgSrv_Iran_WorldView2_Multispectral.sd']
//qalab_server\pydata\v1051\geosaurus\data_prep\SDs\set1
	[]
		['ImgSrv_Landast_Montana2014.sd', 'AGSFS_MMS_KML.sd', 'AGSMS_allextn.sd', 'WFL_usa.sd', 'WTL_usa.sd']
//qalab_server\pydata\v1051\geosaurus\data_prep\SDs\set2
	[]
		['ImgSrv_Landast_Montana2015.sd', 'AGSFS_USA.sd', 'AGSMS_SD.sd', 'WFL_allcapabilities.sd']
```