focsplitter.py

#!/usr/bin/env python3

import sys
import logging

def main():
        fname = sys.argv[1]
        with open(fname) as f:
                blob = f.read()
        pairs = blob.split(',')
        parsed = list(map(lambda a: a[a.find('(') + 1 : a.find(')')], pairs))
        logging.info('Parsed %s emails', len(parsed))
        print('; '.join(parsed) + ';')  # ideal format for pasting into Outlook TO/CC/BCC fields


if __name__ == '__main__':
        logging.basicConfig(level=logging.INFO)
        main()