Python: best practices
Table of Contents
- testing pythontesting
- logging python
- json pythonjson
- TODO asyncio python
- [B] Guido van Rossum on Twitter: "@jonasrk You missed mypy. Simpler docs use markdown, not ReST (Sphinx). Black is overrated unless your team argues over style a lot. You don't need Pylint if you're using flake8. Never heard of poetry or dependabot. And you should use a CI solution, e.g. Travis-CI, to run your tests." / Twitter https://twitter.com/gvanrossum/status/1227126706089021440 python
- [C] configuration via class variables – not great while testing since configuration has to be reloaded… python
- TODO [C] write about setting up elaborate python project + circleci? maybe demonstrate on grasp? pythonci
¶testing pythontesting
¶nose is abandoned pythontesting
¶pytest is the best apparently pythontestingpytest
uses the built in assert
assert 1 == 1, 'This is my error message, which is optional'
- parameterized tests
- fixtures: These aren't the setup/teardown fixtures (per-se), but more like dependency injection (and are incredibly useful). You can even inject a fixture into a fixture (say you need to log in a user, but you need an HTTP client for it to work, you probably use that client elsewhere so DRY it up):
markers: Easy way to categorize tests (and coincidentally run only those groups)
@pytest.mark.slow def test_slow_running_thing(): time.sleep(500)- parallel execution via xdist
¶logging python
¶simple python
import logging
logging.basicConfig(level=logging.INFO) # apparently callin basicconfig at least one is important
logging.exception('Caught an error' + str(e))
¶use logzero for nice colored logs python
¶TODO asyncio python
¶[B] Guido van Rossum on Twitter: "@jonasrk You missed mypy. Simpler docs use markdown, not ReST (Sphinx). Black is overrated unless your team argues over style a lot. You don't need Pylint if you're using flake8. Never heard of poetry or dependabot. And you should use a CI solution, e.g. Travis-CI, to run your tests." / Twitter https://twitter.com/gvanrossum/status/1227126706089021440 python
You don't need Pylint if you're using flake8
hmm
¶[C] configuration via class variables – not great while testing since configuration has to be reloaded… python
¶TODO [C] write about setting up elaborate python project + circleci? maybe demonstrate on grasp? pythonci
CREATED: [2019-08-02]