What are some examples of using patches in Python?

Can you give me some examples of using patches in Python?

Sure! In Python, patches are often used to modify or extend the behavior of functions or classes. One common example is using the unittest.mock library to patch a method during testing.

How do I use the patch decorator?

You can use the patch decorator by importing it from unittest.mock. For example:

from unittest.mock import patch

@patch('module.ClassName.method_name')
def test_method(mock_method):
    mock_method.return_value = 'mocked value'
    assert ClassName().method_name() == 'mocked value'

Are there any other ways to apply patches?

Yes, you can also use patch.object to patch a specific object or patch.dict to modify a dictionary temporarily. Each method has its own use case depending on what you need to test.