#!/usr/bin/env python

import os
import re
from operator import itemgetter

mboxdir = '/usr/local/mailman/archives/private'
emaildict = {}

def getfiles () :
  files = []

  for filename in os.listdir( mboxdir ):

    match = re.match(r'(.*)\.mbox$', filename)
    if match: files.append(filename)

  return files

def getemail ( files ) :
  emails = []

  for file in files:
    file = mboxdir+'/'+file+'/'+file
    try:
      h = open(file, 'r');

    except IOError, e:
      continue

    for line in h.readlines():
      match = re.match(r'^From: (.*)\<([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4})\>$', line)
      if match:
        emails.append(match.group(2))

  return emails

def main() :
  files=getfiles()
  emaillist=getemail(files)

  for email in emaillist:
    if not email in emaildict.keys():
      emaildict[ email ] = 0

    emaildict[ email ] += 1

  for (email, value) in sorted(emaildict.items(), key=itemgetter(1), reverse=True):
    print "%04s: %s" % (value, email)

main()