old_contents: from marrow.mailer import Mailer as MarrowMailer
  from message import Message
  
  import sys
  
  
  class Mailer:
  
    MAILER = MarrowMailer(dict(manager=dict(use='immediate'), transport=dict(use='sendmail')))
  
    @staticmethod
    def send(message):
      Mailer.MAILER.send(message)
  
    @staticmethod
    def start():
      Mailer.MAILER.start()
  
    @staticmethod
    def stop():
      Mailer.MAILER.stop()
  
    @staticmethod
    def send_transactions(transactions, to_addr):
      Mailer.start()
  
      message = Message(
          to=to_addr,
          subject='New transactions',
          plain=repr(transactions)
      )
      Mailer.send(message)
  
      Mailer.stop()
  
    @staticmethod
    def get_cli_email_addr():
      try:
        return sys.argv[1]
      except IndexError:
        return None
  
new_contents: from marrow.mailer import Mailer as MarrowMailer
  from message import Message
  
  import sys
  import os
  import pwd
  import socket
  
  
  class Mailer:
  
    MAILER = MarrowMailer(dict(manager=dict(use='immediate'), transport=dict(use='sendmail')))
    DEFAULT_AUTHOR = pwd.getpwuid(os.getuid()).pw_name + '@' + socket.getfqdn()
  
    @staticmethod
    def send(message):
      Mailer.MAILER.send(message)
  
    @staticmethod
    def start():
      Mailer.MAILER.start()
  
    @staticmethod
    def stop():
      Mailer.MAILER.stop()
  
    @staticmethod
    def send_transactions(transactions, to_addr):
      Mailer.start()
  
      message = Message(
          author=Mailer.DEFAULT_AUTHOR,
          to=to_addr,
          subject='New transactions',
          plain=repr(transactions)
      )
      Mailer.send(message)
  
      Mailer.stop()
  
    @staticmethod
    def get_cli_email_addr():
      try:
        return sys.argv[1]
      except IndexError:
        return None
  
subject: Use current user as email author