pytest has its own method of registering and loading custom fixtures. requests-mock provides an external fixture registered with pytest such that it is usable simply by specifying it as a parameter. There is no need to import requests-mock it simply needs to be installed and specify the argument requests_mock.
The fixture then provides the same interface as the
requests_mock.Mocker letting you use requests-mock as you would expect.
>>> import pytest >>> import requests >>> def test_url(requests_mock): ... requests_mock.get('http://test.com', text='data') ... assert 'data' == requests.get('http://test.com').text ...