Changing lines in specific file types in subdirectories

Question

I am trying to create a script that will search through a user input file path and open all the .cix file type and replace line 27.

What I have so far works on individual folders opening the files within one at a time and modifying the desired line. But if I try to use it on a folder with subfolders it's not working. It is opening and saving the file but it's not changing the line and I can't figure out where I am going wrong.

from tkinter import *
import os

root = Tk()
root.geometry('400x75')
root.title('Labels Off')

dirLabel = Label(root, text='Directory Path:').pack()
e = Entry(root, width='50')
e.pack()

os.listdir(path='.')

def replace(filename):
    f = open(filename, 'r')
    lines = f.readlines()
    print(filename)
    f.close()
    if 'ENABLELABEL=1' in lines[27]:
        lines[27] = '   ENABLELABEL=0\n'
    elif 'ENABLELABEL=0' in lines[27]:
        lines[27] = '   ENABLELABEL=1\n'
    else:
        print('err')

    f = open(filename, 'w')
    f.write(''.join(lines))
    f.close()

def getListOfFiles(dirName):
    # create a list of file and sub directories 
    # names in the given directory 
    listOfFile = os.listdir(dirName)
    allFiles = list()
    # Iterate over all the entries
    for entry in listOfFile:
        # Create full path
        fullPath = os.path.join(dirName, entry)
        # If entry is a directory then get the list of files in this directory 
        if os.path.isdir(fullPath):
            allFiles = allFiles + getListOfFiles(fullPath)
        else:
            allFiles.append(fullPath)

    counter = 0
    for file in allFiles:
        if file.endswith('.cix'):
            replace(file)
        else:
            allFiles.pop(counter)
        counter += 1

    return allFiles

def run():
    dirName = e.get()
    getListOfFiles(dirName)
    e.delete(0, END)

submit = Button(root, text='Run', command=run).pack()

mainloop()

Answer 1

OK, i don't know exactly what was wrong with my previous method of creating a file list but something wasn't working right. After trying for a while i replaced my previous method with this and it now works perfectly,

def getListOfFiles(dirName):

    allFiles = []
    for r, d, f, in os.walk(dirName):
        for file in f:
            if '.cix' in file:
                allFiles.append(os.path.join(r, file))


    for file in allFiles:
        replace(file)

    return allFiles