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lazy-object-proxy 1.3.1

A fast and thorough lazy object proxy.

A fast and thorough lazy object proxy.

  • Free software: BSD 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.


def expensive_func():
    # create expensive object
    return stuff

obj = lazy_object_proxy.Proxy(expensive_func)
# function is called only when object is actually used
print(obj.foobar)  # now expensive_func is called


pip install lazy-object-proxy


To run the all tests run:



This project is based on some code from wrapt as you can see in the git history.


1.3.1 (2017-05-05)

  • Fix broken release (sdist had a broken

1.3.0 (2017-05-02)

  • Speed up arithmetic operations involving cext.Proxy subclasses.

1.2.2 (2016-04-14)

  • Added manylinux wheels.
  • Minor cleanup in readme.

1.2.1 (2015-08-18)

  • Fix a memory leak (the wrapped object would get bogus references). Contributed by Astrum Kuo in #10.

1.2.0 (2015-07-06)

  • Don’t instantiate the object when __repr__ is called. This aids with debugging (allows one to see exactly in what state the proxy is).

1.1.0 (2015-07-05)

  • Added support for pickling. The pickled value is going to be the wrapped object without any Proxy container.
  • Fixed a memory management issue in the C extension (reference cycles weren’t garbage collected due to improper handling in the C extension). Contributed by Alvin Chow in #8.

1.0.2 (2015-04-11)

  • First release on PyPI.
File Type Py Version Uploaded on Size
lazy-object-proxy-1.3.1.tar.gz (md5) Source 2017-05-05 31KB
lazy_object_proxy-1.3.1-cp26-cp26m-manylinux1_i686.whl (md5) Python Wheel cp26 2017-05-05 49KB
lazy_object_proxy-1.3.1-cp26-cp26m-manylinux1_x86_64.whl (md5) Python Wheel cp26 2017-05-05 55KB
lazy_object_proxy-1.3.1-cp26-cp26m-win32.whl (md5) Python Wheel cp26 2017-05-05 21KB
lazy_object_proxy-1.3.1-cp26-cp26m-win_amd64.whl (md5) Python Wheel cp26 2017-05-05 23KB
lazy_object_proxy-1.3.1-cp26-cp26mu-manylinux1_i686.whl (md5) Python Wheel cp26 2017-05-05 49KB
lazy_object_proxy-1.3.1-cp26-cp26mu-manylinux1_x86_64.whl (md5) Python Wheel cp26 2017-05-05 55KB
lazy_object_proxy-1.3.1-cp27-cp27m-manylinux1_i686.whl (md5) Python Wheel cp27 2017-05-05 49KB
lazy_object_proxy-1.3.1-cp27-cp27m-manylinux1_x86_64.whl (md5) Python Wheel cp27 2017-05-05 55KB
lazy_object_proxy-1.3.1-cp27-cp27m-win32.whl (md5) Python Wheel cp27 2017-05-05 21KB
lazy_object_proxy-1.3.1-cp27-cp27m-win_amd64.whl (md5) Python Wheel cp27 2017-05-05 23KB
lazy_object_proxy-1.3.1-cp27-cp27mu-manylinux1_i686.whl (md5) Python Wheel cp27 2017-05-05 49KB
lazy_object_proxy-1.3.1-cp27-cp27mu-manylinux1_x86_64.whl (md5) Python Wheel cp27 2017-05-05 55KB
lazy_object_proxy-1.3.1-cp33-cp33m-manylinux1_i686.whl (md5) Python Wheel cp33 2017-05-05 48KB
lazy_object_proxy-1.3.1-cp33-cp33m-manylinux1_x86_64.whl (md5) Python Wheel cp33 2017-05-05 53KB
lazy_object_proxy-1.3.1-cp33-cp33m-win32.whl (md5) Python Wheel cp33 2017-05-05 21KB
lazy_object_proxy-1.3.1-cp33-cp33m-win_amd64.whl (md5) Python Wheel cp33 2017-05-05 22KB
lazy_object_proxy-1.3.1-cp34-cp34m-manylinux1_i686.whl (md5) Python Wheel cp34 2017-05-05 49KB
lazy_object_proxy-1.3.1-cp34-cp34m-manylinux1_x86_64.whl (md5) Python Wheel cp34 2017-05-05 54KB
lazy_object_proxy-1.3.1-cp34-cp34m-win32.whl (md5) Python Wheel cp34 2017-05-05 21KB
lazy_object_proxy-1.3.1-cp34-cp34m-win_amd64.whl (md5) Python Wheel cp34 2017-05-05 22KB
lazy_object_proxy-1.3.1-cp35-cp35m-manylinux1_i686.whl (md5) Python Wheel cp35 2017-05-05 49KB
lazy_object_proxy-1.3.1-cp35-cp35m-manylinux1_x86_64.whl (md5) Python Wheel cp35 2017-05-05 54KB
lazy_object_proxy-1.3.1-cp35-cp35m-win32.whl (md5) Python Wheel cp35 2017-05-05 22KB
lazy_object_proxy-1.3.1-cp35-cp35m-win_amd64.whl (md5) Python Wheel cp35 2017-05-05 25KB
lazy_object_proxy-1.3.1-cp36-cp36m-manylinux1_i686.whl (md5) Python Wheel cp36 2017-05-05 49KB
lazy_object_proxy-1.3.1-cp36-cp36m-manylinux1_x86_64.whl (md5) Python Wheel cp36 2017-05-05 54KB
lazy_object_proxy-1.3.1-cp36-cp36m-win32.whl (md5) Python Wheel cp36 2017-05-05 22KB
lazy_object_proxy-1.3.1-cp36-cp36m-win_amd64.whl (md5) Python Wheel cp36 2017-05-05 25KB