Automatically sets a global "pp" variable alias to pprint in all tests

evil-pprint.py

import pytest
import pprint
import unittest.mock

@pytest.fixture(autouse=True, scope='function')
def auto_pprint(request):
    """
    Automatically sets a global "pp" variable alias to pprint in all tests

    """
    module = request.node.module

    with unittest.mock.patch.object(module, 'pp', pprint.pprint, create=True):
        yield

# ...
def test_evil_patch():
    pp({'foo': 'bar'})