AT File Renaming

rename.py

#!/usr/bin/env python3

import os
import re

r = re.compile(r'(\w\s-\s\d\d\(fld\s\d\swv\s\w+\s-\s[\w]+-\stime)(\s\d+)(\s-\s\d+\sms)(\)\.tif)')

d = os.path.abspath('files/')

all_files = [f for f in os.listdir(d) if os.path.isfile(os.path.join(d, f))]

matching = 0
for f in all_files:
    m = r.match(f)
    if m:
        matching += 1

        os.rename(
            os.path.join(d, f),
            os.path.join(d, '{}{:03}{}'.format(m.group(1), int(m.group(2)) + 4, m.group(4)))
        )

        if matching % 1000 == 0:
            print("Completed renaming {} files".format(matching))

print("Renaming count", matching)