Factory+Registry pattern for Python classes
Project description
ClassRegistry
At the intersection of the Registry and Factory patterns lies the ClassRegistry:
Define global factories that generate new class instances based on configurable keys.
Seamlessly create powerful service registries.
Integrate with setuptools’s entry_points system to make your registries infinitely extensible by 3rd-party libraries!
And more!
Upgrading from ClassRegistry v4
Getting Started
Create a registry using the class_registry.ClassRegistry class, then decorate any classes that you wish to register with its register method:
from class_registry import ClassRegistry
pokedex = ClassRegistry()
@pokedex.register('fire')
class Charizard(Pokemon):
...
@pokedex.register('grass')
class Bulbasaur(Pokemon):
...
@pokedex.register('water')
class Squirtle(Pokemon):
...To create a class instance from a registry, use the subscript operator:
# Charizard, I choose you!
fighter1 = pokedex['fire']
# CHARIZARD fainted!
# How come my rival always picks the type that my pokémon is weak against??
fighter2 = pokedex['grass']Advanced Usage
There’s a whole lot more you can do with ClassRegistry, including:
Provide args and kwargs to new class instances.
Automatically register non-abstract classes.
Integrate with setuptools’s entry_points system so that 3rd-party libraries can add their own classes to your registries.
Wrap your registry in an instance cache to create a service registry.
And more!
For more advanced usage, check out the documentation on ReadTheDocs!
Requirements
ClassRegistry is known to be compatible with the following Python versions:
3.12
3.11
3.10
Installation
Install the latest stable version via pip:
pip install phx-class-registry
Maintainers
To install the distribution for local development, some additional setup is required:
Install poetry (only needs to be done once).
Run the following command to install additional dependencies:
poetry install --with=dev
Activate pre-commit hook:
poetry run autohooks activate --mode=poetry
Running Unit Tests and Type Checker
Run the tests for all supported versions of Python using tox:
poetry run tox -p
If you just want to run unit tests in the current virtualenv (using pytest):
poetry run pytest
If you just want to run type checking in the current virtualenv (using mypy):
poetry run mypy class_registry test
Documentation
To build the documentation locally:
Switch to the docs directory:
cd docs
Build the documentation:
make html
Releases
Steps to build releases are based on Packaging Python Projects Tutorial.
1. Build the Project
Delete artefacts from previous builds, if applicable:
rm dist/*
Run the build:
poetry build
The build artefacts will be located in the dist directory at the top level of the project.
2. Upload to PyPI
Create a PyPI API token (you only have to do this once).
Increment the version number in pyproject.toml.
Upload build artefacts to PyPI:
poetry publish
3. Create GitHub Release
Create a tag and push to GitHub:
git tag <version> git push <version>
<version> must match the updated version number in pyproject.toml.
Go to the Releases page for the repo.
Click Draft a new release.
Select the tag that you created in step 1.
Specify the title of the release (e.g., ClassRegistry v1.2.3).
Write a description for the release. Make sure to include: - Credit for code contributed by community members. - Significant functionality that was added/changed/removed. - Any backwards-incompatible changes and/or migration instructions. - SHA256 hashes of the build artefacts.
GPG-sign the description for the release (ASCII-armoured).
Attach the build artefacts to the release.
Click Publish release.
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
File details
Details for the file phx_class_registry-5.0.0.tar.gz.
File metadata
- Download URL: phx_class_registry-5.0.0.tar.gz
- Upload date:
- Size: 32.3 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
- Uploaded via: poetry/1.8.3 CPython/3.12.5 Darwin/21.6.0
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | a57ab8c2eca03e0daf06e0dd840ea26b72e2e51b7b7509015b3df7c0d537ee73 |
|
| MD5 | bd24e8d462098dd91b1101ec99ff058a |
|
| BLAKE2b-256 | d4b0dfe7eee3715a522e0507c5d81daab52d4348ee2672fa77c721617dbb6319 |
File details
Details for the file phx_class_registry-5.0.0-py3-none-any.whl.
File metadata
- Download URL: phx_class_registry-5.0.0-py3-none-any.whl
- Upload date:
- Size: 14.8 kB
- Tags: Python 3
- Uploaded using Trusted Publishing? No
- Uploaded via: poetry/1.8.3 CPython/3.12.5 Darwin/21.6.0
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | 6e0644f779c7d793a96090d938fe4c396f3274dd57563dc1c57ea245b5c07f89 |
|
| MD5 | 949252f92c7ce5132e55d63d97a7675f |
|
| BLAKE2b-256 | 41e59384dd7f575ade7a14ae4371d6b4eafd997f18577d3e93ccd0e055389b0b |
