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Refine @cached decorator from #3258

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Don't restrict to Python 2 precisely.
This commit is contained in:
Adrian Sampson 2019-05-09 14:21:38 -04:00
parent d236e1edff
commit ff1d43ddf9
1 changed files with 7 additions and 4 deletions
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11
beets/util/functemplate.py
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@ -554,12 +554,15 @@ def _parse(template):
return Expression(parts)
# Decorator that enables lru_cache on py3, and no caching on py2.
def cached(func):
if six.PY2:
# Sorry python2 users, no caching for you :(
"""Like the `functools.lru_cache` decorator, but works (as a no-op)
on Python < 3.2.
"""
if hasattr(functools, 'lru_cache'):
return functools.lru_cache(maxsize=128)(func)
else:
# Do nothing when lru_cache is not available.
return func
return functools.lru_cache(maxsize=128)(func)
@cached