python_notes.md

Python notes

Logging

Using loggers through the project

Instead of passing instances of loggers (like logging.Logger), it is sometimes better, to just create them (logging.get_logger('logger name')) in places, where you want to use them.

Passing is preferend only in cases, where many objects is created in short ammount of time, because getting logger is a bit slow process.

MR addressed notes

Use super().__init__(path) in Python 3
Reason: TBA

Testing

Looping in pytest

import pytest
@pytest.mark.parametrize("test_input,expected", [
    ("3+5", 8),
    ("2+4", 6),
    ("6*9", 42),
])
def test_eval(test_input, expected):
    assert eval(test_input) == expected