tests_require support about pytest-runner

[jaraco]

Original comment by Jason R. Coombs (Bitbucket: jaraco, GitHub: jaraco):

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I agree it would be a nice enhancement to be able to handle some of these cases better. I think it's unfair to assume the spec for setuptools is "do anything a packaging user might ever want" and then to consider every possible improvement a defect that "needs fixing". Like most projects, you start with an approach and iterate on it.

I disagree; this issue is not (yet) a good practical example of a potential improvement, because the issue doesn't describe what behavior would be desirable or how that might be implemented.

For example, I could imagine taking a very narrow scope and adding 'pytest' support to the setuptools 'test' command (essentially obviating the need for pytest-runner). Alternatively, one could define a new mechanism for any setup_requires to only be relevant when certain commands are present. Still, that doesn't achieve the goal stated in the OP.

Regardless, for anything to happen, we need someone to own the challenge, file the ticket(s), design a solution, and implement it. I welcome the contribution.

[jaraco]

Original comment by Ronny Pfannschmidt (Bitbucket: RonnyPfannschmidt, GitHub: RonnyPfannschmidt):

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i'd love to see this on hold and fixing in setuptools command handling

i think this issue is a giid practical example of things that need fixing in setuptools as well

[jaraco]

Original comment by Jason R. Coombs (Bitbucket: jaraco, GitHub: jaraco):

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I don't think what you describe is possible, but if you can provide an example of what you're envisioning, I'm happy to reconsider.

[jaraco]

Original comment by Jason R. Coombs (Bitbucket: jaraco, GitHub: jaraco):

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pytest-runner is an alternative/replacement for the setuptools/distutils test command. The test command as implemented doesn't provide the necessary hooks to invoke arbitrary behavior such as to invoke pytest. Therefore, it's necessary to have a separate command, and that's what pytest-runner implements. Because it's a separate command, it must be added prior to being invoked, so must be in setup_requires.

[jaraco]

Original comment by Ronny Pfannschmidt (Bitbucket: RonnyPfannschmidt, GitHub: RonnyPfannschmidt):

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that was a miss-communication, what i meant was putting even pytest_runner into tests_require

[jaraco]

Original comment by Jason R. Coombs (Bitbucket: jaraco, GitHub: jaraco):

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Add inline example. Fixes #4

[jaraco]

Original comment by Jason R. Coombs (Bitbucket: jaraco, GitHub: jaraco):

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I lie. It's not in the readme. I'll update that.

[jaraco]

Original comment by Jason R. Coombs (Bitbucket: jaraco, GitHub: jaraco):

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Can you clarify? What behavior are you expecting? What are you experiencing instead? pytest-runner supports tests_require and specifies the support in the readme.