Python - Way to recursively find and replace string in text files

Question

I want to recursively search through a directory with subdirectories of text files and replace every occurrence of {$replace} within the files with the contents of a multi l

Answer 1

Here's my code (which I think is the same as the above but I'm including it just in case there's something subtly different about it):

import os, fnmatch, sys
def findReplace(directory, find, replace, filePattern):
    for path, dirs, files in os.walk(os.path.abspath(directory)):
        for filename in fnmatch.filter(files, filePattern):         
            filepath = os.path.join(path, filename)
            with open(filepath) as f:
                s = f.read()
            s = s.replace(find, replace)
            with open(filepath, "w") as f:
                f.write(s)

it runs without error. BUT, the file, in z:\test is unchanged. I've put in print statements, like print("got here") but they don't print out either.