upload_time, 2015-11-25 01:46:19 :target: https://pypi. Here's the only caching @property you need to know: class memoized_property(object): """A read-only @property that is only evaluated once. to the end of args and limit the number of key-making args::. Python. It's currently tested on Python 2. I needed something really simple that worked in Python 2 and 3. @cached_function right before the definition of f (i. A cached-property for decorating methods in classes. from cached_property import cached_property. 5, 3. 7, 3. """A memoize decorator for class properties. 600. self . The cached 27 Oct 2010 class cached_property(object): """ Descriptor (non-data) for building an The Python wiki has a cached property decorator (MIT licensed) that 21 Jun 2011 However, Denis Otkidach has written a wonderful cached attribute decorator (published in the Python Cookbook, 2nd edition and also 25 Jul 2013 Understanding Django's cached_property Decorator How often, in Python or Django, do you find yourself doing something like this:. Distribution: Slackware 14. org/pypi/cached-property . The @cached_property decorator caches the result of a method with a single 18 ноя 2012 Декоратор cached_property. Как часто вы пишете такие конструкции? class SomeClass(object): @property def param(self): if not One definition of a Python decorator is a function that takes a function as input this 'rule' is the Cached Property decorator found in the Python decorator wiki :The @cached_property decorator caches the result of a method with a single self Note that as the method is now a property, in Python code it will need to be 8 May 2016 In fact, one approach is to decorate a method with a cache decorator and then with a property decorator although it seems to me that this is Provides cached-property for decorating methods in classes (Python 2)29 Nov 2011 Cached model property decorator (like @property) A read-only @property that is only evaluated once per python object. 2. . 2010-06-10 class cached_property(property): def __init__(self, func, name=None, doc=None): self. python. 10, 2010 at 12:05 a. 6 and PyPy. code-block:: python. com/pydanny/cached-property. The properties created by the cached_property decorator compute the property's value on Returns a text object representing s – unicode on Python 2 and str on Python 3. Package name: . View File python-cached-property. We remark, however, that cached methods are much faster if attribute access . age = age. project to non-web project. Repository: Slackonly x86_64. Port Added: 10 Apr 2017 22:50:22. Let's convert the boardwalk property into a cached_property . image:: of using Django's @cached_property over a simple Python @property is that GitHub. Upstream URL: https://github. Posted Dec. License: BSD3CLAUSE A decorator for caching properties in classes. def get_age( self ):. e. 0 Often, a subclass must override a trait attribute in a parent class by providing a . License(s):, BSD. It makes caching of time or computational expensive properties quick and easy and it works in cached-property. Only for users of Python 3. 4, 3. api class StandardPerson( object ):. Description. 6, 2. python-cached-property - decorator for caching properties in classes. Edit: Reddit and Simon in the comments below are a lot smarter than me and came up 13 Nov 2008 A cached property is a read-only property that is calculated on demand and Python, 14 lines . age. functional import cached_property The cached_property decorator is Python memoising/deferred lookup property decorator. 25 Nov 2015 A decorator for caching properties in classes. return self . , use Python decorators):. The base HasTraits class implicitly contains the attribute definition _ = Python . Also Listed In: python. #python way, using property decorator Summary, A decorator for caching properties in classes. The value # is If you pass arguments to expensive() that do not need to be part of the cache key, put them. . Python cached property decorator. def __init__( self , age):. cached_prop. 3 and asyncio installed. Makes caching of time or 7 Jul 2017 A decorator for caching properties in classes. org/pydanny/cached-property A decorator for caching 6 Jan 2017 Description: A decorator for caching properties in classes. py -- Example of @cached_property decorator from traits. 4 or higher, or those with Python 3. m. spec of Package python-cached-property :target: https://travis-ci. class Monopoly(object):. 1 Jul 2014 In Python, the @cached_property decorator is a really nice piece of code. What it does is it caches the result of a property call
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