Python find-replace

find_replace_example.py

import re

output_file_path = 'whatever'
content = None
with open(out_file_path, 'r') as f:
    content = f.read()

# Regex find, replace pairs
FINDREPLACE_LIST = [
    ( re.compile(r'FIND', re.M), r'REPLACE' )
]
for pair in FINDREPLACE_LIST:
    tem = re.subn(pair[0], pair[1], content)
    content = tem[0]

with open(out_file_path, 'w') as f:
    f.write(content)