python_send_email

  #Combining images
  images = [Image.open(x) for x in ['line_chart.png','bar_chart.png','histogram.png']]
  widths, heights = zip(*(i.size for i in images))
  total_width = sum(widths)
  max_height = max(heights)
  combined_image = Image.new('RGBA', (total_width, max_height))
  offset = 0

  for im in images:
    combined_image.paste(im, (offset,0))
    offset += im.size[0]

  combined_image = combined_image.resize((int(0.5*total_width), int(0.5*max_height)))
  combined_image.save('combined.png')

  #Creating email
  message = MIMEMultipart()
  message['Subject'] = ('Exam Results for %s' % (df.loc[i]['Name'] + ' ' + df.loc[i]['Surname']))
  message.attach(MIMEText('Dear %s please find your exam results below:' % (df.loc[i]['Name'])))

  #Embedding image
  message_body = MIMEText('<br><img src="cid:%s"><br>' % ('combined.png'), 'html')  
  message.attach(message_body)

  file = open('combined.png', 'rb')                                                    
  image = MIMEImage(file.read())
  file.close()
  image.add_header('Content-ID', '<{}>'.format('combined.png'))
  message.attach(image)

  #Sending email
  smtp = smtplib.SMTP('smtp.gmail.com:587')
  smtp.ehlo()
  smtp.starttls()

  smtp.login(email_user, email_pass)
  smtp.sendmail(email_user,df.loc[i]['Email'],message.as_string())
  smtp.quit()