exctract_emails.py

from __future__ import print_function
import re
import os

emailregex = re.compile(r"([a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+)")

def get_emails(directory):
    emails = []
    for element in os.listdir(directory):
        if '.vcf' == os.path.splitext(element)[1]:
            with open(element, 'r') as fd:
                data = fd.read()
                match = emailregex.search(data)
                if match:
                    emails.append(match.group(0))
    return emails


if __name__ == '__main__':
    import sys
    if len(sys.argv) == 1:
        emails = set(get_emails('.'))
        liste = '\n'.join(emails)
        print(liste)
    elif len(sys.argv) == 2:
        emails = set(get_emails(sys.argv[1]))
        liste = '\n'.join(emails)
        print(liste)