Dataclass properties in Python

This is the supporting repository for "Reconciling Dataclasses And Properties In Python", a blog post published on my blog and (soon) dev.to.

The various Python files here are the attempts presented in the blog post to implement properties on dataclasses — which is not an intuitive task.

Usage

To run an interpreter using any of the attempts, you can make use of Python's -i command line argument, which starts a shell after running a script:

$ python -i 3_field.py
>>> # Start doing things with `Vehicle`!

Resources

Official documentation on dataclasses and features used in the blog post:

• The @dataclass decorator
• The field() function
• Post-init processing: __post_init__()
• Init-only variables: InitVar
• PEP-557 -- Data Classes