Ok, this might sound like that we are in the spamming business now. Well, we are not. The case is that email address is typically the only per-person unique key in CRM data. These couple of lines of Python will extract email addresses from any text file, e.g a HTML-file. This script will also make list unique so if the same email address is listed many times in the original data, it will be only once in the output. Enjoy:

#!/usr/bin/env python

# coding: utf-8

import os

import re

import sys
def grab_email(file):

    """Try and grab all emails addresses found within a given file."""

    email_pattern = re.compile(r'\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b',

                               re.IGNORECASE)

    found = set()

    if os.path.isfile(file):

        for line in open(file, 'r'):

            found.update(email_pattern.findall(line))

    for email_address in found:

        print email_address
if __name__ == '__main__':

    grab_email(sys.argv[1])





Share and Enjoy: