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Sometimes, when writing tests in Pytest, I find myself using fixtures that the test function/method doesn’t directly reference. Instead, Pytest runs the fixture, and the test function implicitly leverages its side effects. For example: import os from collections.abc import Iterator from unittest.mock import Mock, patch import pytest # Define an...

Although I’ve been using Python 3.12 in production for nearly a year, one neat feature in the typing module that escaped me was the @override decorator. Proposed in PEP-6981, it’s been hanging out in typing_extensions for a while. This is one of those small features you either don’t care about or get totally psyched over. I’m definitely in the...

Although I’ve been using Python 3.12 in production for nearly a year, one neat feature in the typing module that escaped me was the @override decorator. Proposed in PEP-6981, it’s been hanging out in typing_extensions for a while. This is one of those small features you either don’t care about or get totally psyched over. I’m definitely in the...

This morning, someone on Twitter pointed me to PEP 5621, which introduces __getattr__ and __dir__ at the module level. While __dir__ helps control which attributes are printed when calling dir(module), __getattr__ is the more interesting addition. The __getattr__ method in a module works similarly to how it does in a Python class. For example:...

This morning, someone on Twitter pointed me to PEP 5621, which introduces __getattr__ and __dir__ at the module level. While __dir__ helps control which attributes are printed when calling dir(module), __getattr__ is the more interesting addition. The __getattr__ method in a module works similarly to how it does in a Python class. For example:...