diff options
Diffstat (limited to 'mako/cache.py')
| -rw-r--r-- | mako/cache.py | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/mako/cache.py b/mako/cache.py index 43f7317..595b05f 100644 --- a/mako/cache.py +++ b/mako/cache.py @@ -1,10 +1,10 @@ from mako import exceptions -try: - from beaker import cache - cache = cache.CacheManager() -except ImportError: - cache = None +cache = None + +class BeakerMissing(object): + def get_cache(self, name, **kwargs): + raise exceptions.RuntimeException("the Beaker package is required to use cache functionality.") class Cache(object): def __init__(self, id, starttime): @@ -43,8 +43,16 @@ class Cache(object): self.invalidate(name, defname=name) def _get_cache(self, defname, type=None, **kw): + global cache if not cache: - raise exceptions.RuntimeException("the Beaker package is required to use cache functionality.") + try: + from beaker import cache as beaker_cache + cache = beaker_cache.CacheManager() + except ImportError: + # keep a fake cache around so subsequent + # calls don't attempt to re-import + cache = BeakerMissing() + if type == 'memcached': type = 'ext:memcached' if not type: |