From d6da2c8d98a333d45de52f91adc576856977f4f0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kim=20Silkeb=C3=A6kken?= <kim.silkebaekken@gmail.com>
Date: Sun, 27 Jan 2013 17:40:02 +0100
Subject: [PATCH] Reset memoize cache if unable to unpickle

This is usually due to the cache being stored with Python 3 and then
attempted to being loaded in Python 2 which raises a ValueError.

Closes #138.
---
 powerline/lib/memoize.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/powerline/lib/memoize.py b/powerline/lib/memoize.py
index 33be7d7d..00dbeef8 100644
--- a/powerline/lib/memoize.py
+++ b/powerline/lib/memoize.py
@@ -29,8 +29,8 @@ class memoize(object):
 				try:
 					with open(self.persistent_file, 'rb') as fileobj:
 						self._cache = pickle.load(fileobj)
-				except (IOError, EOFError):
-					pass
+				except (IOError, EOFError, ValueError):
+					self._cache = {}
 			cached = self._cache.get(key, None)
 			if cached is None or time.time() - cached['time'] > self.timeout:
 				cached = self._cache[key] = {