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| author | Raymond Hettinger <python@rcn.com> | 2012-06-04 07:32:15 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2012-06-04 07:32:15 (GMT) |
| commit | 7d74effc67281b505756e040437241e5b1436a7c (patch) | |
| tree | 0ccd97bddebcf2b72b53ca2960a7d4219f348abc | |
| parent | 0c9050c25db74108d1fa4051bca4d16d2394f826 (diff) | |
| download | cpython-7d74effc67281b505756e040437241e5b1436a7c.zip cpython-7d74effc67281b505756e040437241e5b1436a7c.tar.gz cpython-7d74effc67281b505756e040437241e5b1436a7c.tar.bz2 | |
Add usage note.
| -rw-r--r-- | Doc/library/functools.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Doc/library/functools.rst b/Doc/library/functools.rst index 1b0d82a..f5c6608 100644 --- a/Doc/library/functools.rst +++ b/Doc/library/functools.rst @@ -49,8 +49,9 @@ The :mod:`functools` module defines the following functions: Since a dictionary is used to cache results, the positional and keyword arguments to the function must be hashable. - If *maxsize* is set to None, the LRU feature is disabled and the cache - can grow without bound. + If *maxsize* is set to None, the LRU feature is disabled and the cache can + grow without bound. The LRU feature performs best when *maxsize* is a + power-of-two. If *typed* is set to True, function arguments of different types will be cached separately. For example, ``f(3)`` and ``f(3.0)`` will be treated |