Simple Python `classproperty` decorator

PyPI package

This module provides a simple way for defining class properties.

You can install this Python module via pip:

pip install simple-classproperty

Otherwise the module can be downloaded from PyPI: https://pypi.org/project/simple-classproperty/

Import the module:

from simple_classproperty import ClassPropertyMeta, classproperty

Create a class with a class property:

class NewClass(metaclass=ClassPropertyMeta):
    _attr = "val"

    @classproperty
    def attr(cls):
        return cls._attr

Don't forget to set the metaclass!

(Optional) Define also a setter and deleter for the newly created class property (this works like the standard python property):

@attr.setter
def attr(cls, value):
    cls._attr = value

@attr.deleter
def attr(cls):
    del cls._attr

The classproperty is also accessible from an instance:

instance = NewClass()
print(instance.attr)  # "val"

But when the value of the property is changed from an instance object, only the instance has this value:

instance = NewClass()
instance.attr = "new"
print(instance.attr)  # "new"
print(NewClass.attr)  # "val"

When deleting the property from the instance, the class value is used again:

instance = NewClass()
instance.attr = "new"
print(instance.attr)  # "new"

del instance.attr
print(instance.attr)  # "val"

Metadata

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Source distribution for simple-classproperty 1.0.1
File	Size	Uploaded
simple-classproperty-1.0.1.tar.gz	3.0 kB	May 11, 2020	Details

Table of built distributions (wheels) for simple-classproperty 1.0.1
File	Interpreter	ABI	Platform	Reset
simple_classproperty-1.0.1-py3-none-any.whl 15.2 kB May 11, 2020	Python 3	none	any	Details

Total release size: 18.2 kB

Download URL	simple-classproperty-1.0.1.tar.gz
Size	3.0 kB
Tags	Source
SHA-256 checksum How to use checksums	`b885171033095b08d84d8b94398427dfaacc45ba7491a7ef9ed61a98e6a7a07d`
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Uploaded via	`twine/1.15.0 pkginfo/1.5.0.1 requests/2.23.0 setuptools/46.2.0 requests-toolbelt/0.9.1 tqdm/4.46.0 CPython/3.5.9`

Download URL	simple_classproperty-1.0.1-py3-none-any.whl
Size	15.2 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`46dafc4d1b3971f5a255741ec448863c8cdc57b58ad1c91c90dd0fa223d8f1c6`
BLAKE2b-256 checksum How to use checksums	`4eddbff485d7d63c43e2f8433acfa478df8614282fa07c46c7182868d8a885ac`
Upload date	May 11, 2020
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.15.0 pkginfo/1.5.0.1 requests/2.23.0 setuptools/46.2.0 requests-toolbelt/0.9.1 tqdm/4.46.0 CPython/3.5.9`