PyCache

gistfile1.py

#!/usr/bin/python
from __future__ import with_statement
import os,stat, pickle
class PyCache:
	file = "/tmp/pycache.tmp"
	def __init__(self): pass
	def retrieve(self):
		try:
			st = os.stat(self.file)
			curtime = time.time()
			if curtime - st[stat.ST_MTIME] > 300:
				os.unlink(self.file)
				return None
			else:
				with open(self.file) as f: return pickle.load(f)
		except:
			return None
	def cache(self, object):
		with open(self.file, 'w') as f: pickle.dump(object,f)