How to join two generators in Python?

Question

I want to change the following code

for directory, dirs, files in os.walk(directory_1):
    do_something()

for directory, dirs, files in os.walk(directory_2         


        

Answer 1

If you want to keep the generators separate but still iterate over them at the same time you can use zip():

NOTE: Iteration stops at the shorter of the two generators

For example:

for (root1, dir1, files1), (root2, dir2, files2) in zip(os.walk(path1), os.walk(path2)):

    for file in files1:
        #do something with first list of files

    for file in files2:
        #do something with second list of files