how to open files that match a pattern in a subdirectory

Question

Hello i have a problem finding and opening files in a subdirectory. I have several different files called for example :
mouse_1_animal.txt
mouse_2_animal.txt mouse_3_animal.txt

so i want to find all these files in the subdirectory of the working dir and open them and do something with there lines. This is my try:

i=1
for path, subdirs, files in os.walk(root) :
    for file in files :
        if file == "mouse_{0}_animal.txt".format(i) :
            #do something
            i = i + 1

but apparently it doesn't find all the files so i'm wondering if it's the way i'm using to find the file that is wrong.

Answer 1

The pythonic way:

import glob
for f in glob.glob('./subDir/mouse_*_animal.txt'):
    # do_something