Arduino Yun Python ImportError: No Module named mime.multipart

So, I have an Arduino Yun, and I'm trying to send an email with python. I have this code that I got from https://github.com/amicojeko/YouCantTouchThis

But when I try to call the file with $python sendemail.py test.png, it returns me an error:

ImportError: No module named mime.multipart

I already tried to change to lowercase the imports, but it keeps showing the same error. The python version in the Arduino is 2.7. I've read something about module reorganization but even with the changes the error keep showing.
Here is the code:

# coding=utf-8
# Copyright (C) 2014  Stefano Guglielmetti

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

import smtplib, os, sys
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.MIMEText import MIMEText
from email.Utils import COMMASPACE, formatdate
from email import Encoders

#From address, to address, subject and message body
from_address    = '[email protected]'
to_address      = ['[email protected]']
email_subject   = 'Alert!!! Zombies!!! Ahead!!!'
email_body      = 'A non dead intruder has been detected and needs to be eliminated!'

# Credentials (if needed)
username = 'EMAIL_LOGIN'
password = 'EMAIL_PASSWORD'

# The actual mail send
server = 'smtp.gmail.com:587'

def send_mail(send_from, send_to, subject, text, files=[], server="localhost"):
    assert type(send_to)==list
    assert type(files)==list

    msg = MIMEMultipart()
    msg['From'] = send_from
    msg['To'] = COMMASPACE.join(send_to)
    msg['Date'] = formatdate(localtime=True)
    msg['Subject'] = subject

    msg.attach( MIMEText(text) )

    for f in files:
        part = MIMEBase('application', "octet-stream")
        part.set_payload( open(f,"rb").read() )
        Encoders.encode_base64(part)
        part.add_header('Content-Disposition', 'attachment; filename="%s"' % os.path.basename(f))
        msg.attach(part)

    smtp = smtplib.SMTP(server)
    smtp.starttls()
    smtp.login(username,password)
    smtp.sendmail(send_from, send_to, msg.as_string())
    smtp.close()

send_mail(from_address, to_address, email_subject, email_body, [sys.argv[1]], server) #the first command line argument will be used as the image file name