Rename multiple files inside multiple folders

Question

So I have a lot of folders with a certain name. In each folder I have +200 items. The items inside the folders has names like:

CT.34562346.246.dcm
RD.34562346.dc         


        

Answer 1

This will rename files in subdirectories too:

import os
rootdir = "foo" + os.sep + "bar"
for subdir, dirs, files in os.walk(rootdir):
    for file in files:
        filepath = subdir + os.sep + file
        foldername = subdir.split(os.sep)[-1]

        number = ""
        foundnumber = False

        for c in filepath:
            if c.isdigit():
                foundnumber = True
                number = number + c
            elif foundnumber:
                break
        if foundnumber:
            newfilepath = filepath.replace(number,foldername)
            os.rename(filepath, newfilepath)