Re: PEP-582 concerns
Tzu-ping Chung <[email protected]>
| Newsgroups | gmane.comp.python.distutils.devel |
|---|---|
| Message-ID | <[email protected]> |
> On 20/2/2019, at 23:19, Steve Dower <[email protected]> wrote: > > On 20Feb.2019 0533, Tzu-ping Chung wrote: >> As one of the Pipenv maintainers, however, it is my personal opinion that this >> PEP would not be end up in the “yet another standard” situation, but even be >> beneficial to Pipenv, if done correctly. >> >> I hope this can provide some confidence :) > > I'd love to hear more about how Pipenv would make use of it. So far it's > only really been designed with pip in mind (and their team in the > discussion), but we've explicitly left it _very_ tool independent. So if > you can describe how it would work with Pipenv, that would be helpful > for finding things that need changing. When you run `pipenv install` (roughly analogous to pip install -r), Pipenv creates a virtual environment somewhere on the machine (depending on various configurations), and install packages into it. Afterward the user can run commands like `pipenv run python`, and Pipenv would activate the virtual environment for the command. With PEP 582, __pypackages__ can be used instead of virtual environments, and since “activation” is done automatically by the interpreter and pip, `pipenv run` can do less than it currently needs to. There are still some ergonomics problems, e.g. how does Pipenv know what Python version to install into, but I don’t think there’s anything in the PEP at the moment that would make the adoption impossible. We’ll definitely try to be heard if any blockers appear :) > > Also, the `pythonloc` package is an implementation of this that anyone > can try out today - https://pypi.org/project/pythonloc/ (the major > difference is that when implemented, you won't have to use "pythonloc" > and "piploc" to get the new behaviour). > > Cheers, > Steve -- Distutils-SIG mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/distutils-sig.python.org/ Message archived at https://mail.python.org/archives/list/[email protected]/message/2IQOMDUV5F5DEGEKIEE2GPBTGBXAPNMH/