#!/usr/bin/env python
# -*- coding: utf-8 -*-  

import time

def prevday(then,now):
	#ist "then" gestern (oder noch älter)?
	greaterDay=(then.tm_yday < now.tm_yday) and (then.tm_year == now.tm_year)
	if(greaterDay):
		newYear=False
	else:
		newYear=then.tm_year < now.tm_year
	return (greaterDay) or (newYear)

def preptime():
	now=time.localtime()
	day=now.tm_mday
	month=now.tm_mon
	year=str(now.tm_year)
	if(day<10):
		day="0"+str(day)
	else:
		day=str(day)
	if(month<10):
		month="0"+str(month)
	else:
		month=str(month)
	return month+"."+day+"."+year