Simple Python `classproperty` decorator

PyPI package

This module provides a simple way for defining class properties.

Install

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/

Usage

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

Tips

The classproperty is also accessible from an instance:

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

When the value of the property is changed from an instance object, the class property will be changed. All other instances will have this new value:

instance1 = NewClass()
instance2 = NewClass()

instance1.attr = "new"

print(instance1.attr)  # "new"
print(instance2.attr)  # "new"
print(NewClass.attr)   # "new"

This behavior is the same when a property gets deleted from an instance.

Metadata

Release files for simple-classproperty 4.0.0

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Source distribution (sdist)

Source distribution for simple-classproperty 4.0.0
File	Size	Uploaded
simple_classproperty-4.0.0.tar.gz	14.8 kB	Oct 14, 2023	Details

Built distribution (wheel)

Table of built distributions (wheels) for simple-classproperty 4.0.0
File	Interpreter	ABI	Platform	Reset
simple_classproperty-4.0.0-py3-none-any.whl 16.1 kB Oct 14, 2023	Python 3	none	any	Details

Total release size: 30.9 kB

Release files / simple_classproperty-4.0.0.tar.gz

Download URL	simple_classproperty-4.0.0.tar.gz
Size	14.8 kB
Tags	Source
SHA-256 checksum How to use checksums	`22e83e3677b5b35b31c7a99ae86635aa6e7673b26068ddb8689797df2cf69aeb`
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Upload date	Oct 14, 2023
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`poetry/1.5.1 CPython/3.7.17 Linux/6.2.0-1012-azure`

Release files / simple_classproperty-4.0.0-py3-none-any.whl

Download URL	simple_classproperty-4.0.0-py3-none-any.whl
Size	16.1 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`3cfc794f0703f2b3e7e64a073bf70824845de26d2840f26e40382a62c3844bfd`
BLAKE2b-256 checksum How to use checksums	`5095e6dcbb0201435456889f75421c7a77b37ec7915b8645f2f0a4b325cfb3c1`
Upload date	Oct 14, 2023
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`poetry/1.5.1 CPython/3.7.17 Linux/6.2.0-1012-azure`