python-lazy-object-proxy
Subpackage Descriptions
| single |
========
Overview
========
:alt: Documentation Status
.. end-badges
A fast and thorough lazy object proxy.
* Free software: BSD 2-Clause License
Note that this is based on `wrapt`_'s ObjectProxy with one big change: it
calls a function the first time the proxy object is
used, while `wrapt.ObjectProxy` just forwards the method calls to the
target object.
In other words, you use `lazy-object-proxy` when you only have the object
way later and you use `wrapt.ObjectProxy` when you
want to override few methods (by subclassing) and forward everything else
to the target object.
Example::
import lazy_object_proxy
def expensive_func():
from time import sleep
print('starting calculation')
# just as example for a very slow computation
sleep(2)
print('finished calculation')
# return the result of the calculation
return 10
obj = lazy_object_proxy.Proxy(expensive_func)
# function is called only when object is actually used
print(obj) # now expensive_func is called
print(obj) # the result without calling the expensive_func
Installation
============
::
pip install lazy-object-proxy
You can also install the in-development version with::
pip install
https://github.com/ionelmc/python-lazy-object-proxy/archive/master.zip
Documentation
=============
https://python-lazy-object-proxy.readthedocs.io/
Development
===========
To run all the tests run::
tox
Acknowledgements
================
This project is based on some code from `wrapt`_ as you can see in the git
history.
.. _wrapt: https://github.com/GrahamDumpleton/wrapt
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Configuration Switches (platform-specific settings discarded)
PY312 OFF Build using Python 3.12
PY313 ON Build using Python 3.13
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Distribution File Information
1f5a462d92fd0cfb82f1fab28b51bfb209fabbe6aabf7f0d51472c0c124c0c61 43681 python-src/lazy_object_proxy-1.12.0.tar.gz
Ports that require python-lazy-object-proxy:v13
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