Why principles? Every time you come to a fork in the road a principle can help you. Some examples: If traffic gets confusing, slow down, If you take the last pasta sauce from the pantry, put it on the shopping list The more you learn the more you earn Principles work as guiding lights but…
In “What’s the difference between classmethod and staticmethod in Python?” we looked at static and class methods. The third big decorator is the @property decorator import pytest class Person: def __init__(self, name): self._name = name @property def name(self): print(‘Getting name’) return self._name @name.setter def name(self, value): print(f’Setting name to {value}’) self._name = value @name.deleter def…
Motivation pytest executes tests in a randomly order. Sometimes it can be useful to have a predefined order in which test cases can run. pytest has a neat plugin for this specific use case. Installation pip install pytest-order Usage import pytest @pytest.mark.order(1) def test_foo(): assert True @pytest.mark.order(2) def test_bar(): assert True @pytest.mark.order(3) def test_foobar(): assert…
Python comes with several built-in decorators. The most important are: @classmethod @staticmethod @property In a nutshell: A static method can be called on either an instance of the class or the class directly but cannot access any class member. A class method is basically the same but it can also access properties of the class.…