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Project Description

This module provides various memoizing collections and decorators, including variants of the Python 3 Standard Library @lru_cache function decorator.

>>> from cachetools import LRUCache
>>> cache = LRUCache(maxsize=2)
>>> cache.update([('first', 1), ('second', 2)])
>>> cache
LRUCache([('second', 2), ('first', 1)], maxsize=2, currsize=2)
>>> cache['third'] = 3
>>> cache
LRUCache([('second', 2), ('third', 3)], maxsize=2, currsize=2)
>>> cache['second']
2
>>> cache['fourth'] = 4
>>> cache
LRUCache([('second', 2), ('fourth', 4)], maxsize=2, currsize=2)

For the purpose of this module, a cache is a mutable mapping of a fixed maximum size. When the cache is full, i.e. by adding another item the cache would exceed its maximum size, the cache must choose which item(s) to discard based on a suitable cache algorithm. In general, a cache’s size is the total size of its items, and an item’s size is a property or function of its value, e.g. the result of sys.getsizeof(value). For the trivial but common case that each item counts as 1, a cache’s size is equal to the number of its items, or len(cache).

Multiple cache classes based on different caching algorithms are implemented, and decorators for easily memoizing function and method calls are provided, too.

Installation

Install cachetools using pip:

pip install cachetools

License

Copyright (c) 2014-2016 Thomas Kemmer.

Licensed under the MIT License.

Release History

Release History

2.0.0

This version

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1.1.6

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1.1.5

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1.1.4

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1.1.3

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1.1.2

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1.1.1

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1.1.0

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1.0.3

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1.0.2

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1.0.1

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1.0.0

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0.8.2

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0.8.1

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0.8.0

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0.7.1

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0.7.0

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0.6.0

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0.5.1

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0.5.0

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0.4.0

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0.3.1

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0.3.0

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0.2.0

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0.1.0

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0.0.0

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
cachetools-2.0.0-py2.py3-none-any.whl (11.6 kB) Copy SHA256 Checksum SHA256 py2.py3 Wheel Oct 3, 2016
cachetools-2.0.0.tar.gz (18.6 kB) Copy SHA256 Checksum SHA256 Source Oct 3, 2016

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