docs: def GetEmail(prompt):
  	"""Prompts the user for their email address and returns it.
  
  	The last used email address is saved to a file and offered up as a suggestion
  	to the user. If the user presses enter without typing in anything the last
  	used email address is used. If the user enters a new address, it is saved
  	for next time we prompt.
  
  	"""
  	last_email_file_name = os.path.expanduser("~/.last_codereview_email_address")
  	last_email = ""
  	if os.path.exists(last_email_file_name):
  		try:
  			last_email_file = open(last_email_file_name, "r")
  			last_email = last_email_file.readline().strip("\n")
  			last_email_file.close()
  			prompt += " [%s]" % last_email
  		except IOError, e:
  			pass
  	email = raw_input(prompt + ": ").strip()
  	if email:
  		try:
  			last_email_file = open(last_email_file_name, "w")
  			last_email_file.write(email)
  			last_email_file.close()
  		except IOError, e:
  			pass
  	else:
  		email = last_email
  	return email