python walk directory to list (thispointer.com)

walk directory.py

# puts all file paths in filelist
# puts all folders in dirlist

filelist = []
dirlist = []
for (dirpath,dirnames,filenames) in os.walk('my\path\to\walk'):
		filelist += [os.path.join(dirpath,file) for file in filenames]
		dirlist += dirnames