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| author | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2020-05-12 00:00:53 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-05-12 00:00:53 (GMT) |
| commit | 21cdb711e3b1975398c54141e519ead02670610e (patch) | |
| tree | bbe4a1006ff4a8d3f6e280eb556b7c25cccb1f4c /Lib/functools.py | |
| parent | 4804b5b3df82e7892ca0550b02f902bcfc16bb48 (diff) | |
| download | cpython-21cdb711e3b1975398c54141e519ead02670610e.zip cpython-21cdb711e3b1975398c54141e519ead02670610e.tar.gz cpython-21cdb711e3b1975398c54141e519ead02670610e.tar.bz2 | |
bpo-40571: Make lru_cache(maxsize=None) more discoverable (GH-20019)
Diffstat (limited to 'Lib/functools.py')
| -rw-r--r-- | Lib/functools.py | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/Lib/functools.py b/Lib/functools.py index f05b106..87c7d87 100644 --- a/Lib/functools.py +++ b/Lib/functools.py @@ -10,7 +10,7 @@ # See C source code for _functools credits/copyright __all__ = ['update_wrapper', 'wraps', 'WRAPPER_ASSIGNMENTS', 'WRAPPER_UPDATES', - 'total_ordering', 'cmp_to_key', 'lru_cache', 'reduce', + 'total_ordering', 'cache', 'cmp_to_key', 'lru_cache', 'reduce', 'TopologicalSorter', 'CycleError', 'partial', 'partialmethod', 'singledispatch', 'singledispatchmethod', 'cached_property'] @@ -889,6 +889,15 @@ except ImportError: ################################################################################ +### cache -- simplified access to the infinity cache +################################################################################ + +def cache(user_function, /): + 'Simple lightweight unbounded cache. Sometimes called "memoize".' + return lru_cache(maxsize=None)(user_function) + + +################################################################################ ### singledispatch() - single-dispatch generic function decorator ################################################################################ |