Fixtures without name matching magic

I've been happily using pytest for several projects for the past few years. There's one part about pytest that I still struggle to get behind: The way that fixtures magically match argument names to fixtures -- and apparently [I'm not alone in this feeling](https://mail.python.org/pipermail/numpy-discussion/2018-August/078560.html). I would much rather declare dependencies explicitly in some way using code. I know this would be more verbose, but that's a tradeoff I'm happy to make. Is it possible to do this in some way with pytest today? If not, would you be open to adding an *optional* feature for this? I was thinking perhaps something like the following, using an example adapted from [the docs](https://docs.pytest.org/en/latest/fixture.html): ```python import pytest @pytest.fixture def smtp_connection(): import smtplib return smtplib.SMTP("smtp.gmail.com", 587, timeout=5) @pytest.use_fixture(smtp_connection) def test_ehlo(connection): response, msg = connection.ehlo() assert response == 250 assert 0 # for demo purposes ```

Posted by shoyer on Aug 19, 2018, 7:44 PM

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