[psimem]

Ok, dopo un po' di tentativi sono riuscito a fare un ulteriore passo in avanti.
Al momento mi trovo con un file.txt contenente un bel po' di testo che a me non serve.
Cio' che mi servirebbe sarebbe estrarre i link come evidenziato sotto:

Tested just uploaded a video
Halftime Drones - This is Only a Test 386 - 2/9/17
http://www.youtube.com/watch?v=zDb_rotMvho&feature=em-uploademail
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Tested just uploaded a video
This is only an example
http://www.youtube.com/watch?v=hdte5qlc9rb&feature=em-uploademail
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In modo da ottenere un file di testo contenente solo:

http://www.youtube.com/watch?v=zDb_rotMvho
http://www.youtube.com/watch?v=hdte5qlc9rb

Che ne dite, si puo' fare?

Ho dimenticato lo script aggiornato :

#!/usr/bin/env python

import datetime
import email
import imaplib
import mailbox

print '----------------------------'
print 'Login...'
mail = imaplib.IMAP4_SSL('imap.gmail.com')
try:
    mail.login('youremail', 'yourpassword')
    print "Success."
except imaplib.IMAP4.error:
    print "LOGIN FAILED!!! "
    # ... exit or deal with failure...
mail.list() # Lists all labels in GMail
mail.select('YTsubs') # Select YTsubs folder
print '----------------------------'

n=0
(retcode, messages) = mail.search(None, '(UNSEEN)')
if retcode == 'OK':

   for num in messages[0].split() :
      #print 'Processing...'
      n=n+1
      typ, data = mail.fetch(num,'(RFC822)')
      print "Processing %s." % n

      for response_part in data:
         if isinstance(response_part, tuple):
             original = email.message_from_string(response_part[1])
	     #print original
	     print original['From']
             print original['Subject']
             myfile = open("Extractedemail.txt", 'a')
	     #myfile.write("original\n")
	     myfile.write("---------- Indentation line ---------- \n %s \n" % original)
	     myfile.close()
             typ, data = mail.store(num,'+FLAGS','\\Seen')
             print '----------------------------'

print "Total processed: %s." % n
print '----------------------------'