I prefer to use importlib.metadata.version("dist-name")
On Mon, 12 Apr 2021, 19:51 Christopher Barker, <python...@gmail.com> wrote:
> Over the years, I've seen __version__ used very broadly but not *quite* in
> all packages. I've always known it was a convention, not a requirement. But
> it turns out it's not even a "official" convention.
>
> But it really would be nice if there was a consistent way that I could
> count on to get the version of a package at run time.
>
> Turns out this was suggested in PEP 396 -- and deferred almost 13 years
> ago!
>
> https://www.python.org/dev/peps/pep-0396/
>
> In the status note, it says:
>
> """
> Further exploration of the concepts covered in this PEP has been deferred
> for lack of a current champion interested in promoting the goals of the PEP
> and collecting and incorporating feedback, and with sufficient available
> time to do so effectively.
> """
>
> Well, I may be willing to be that champion, if a core dev is willing to
> sponsor, and I see some interest from this group.
>
> And, well, after 13 years, we've seen __version__ be very broadly, though
> certainly not universally used.
>
> Honestly, I haven't looked to see to what extent setuptools supports it,
> but will, of course, do so if folks think this is worth pursuing.
>
> Or maybe this is a settled issue in setuptools, and we just need to change
> the status of the PEP.
>
> For my part, I FAR prefer the version info to be embedded in the code of
> the package in a simple way, rather than hiding among the
> setuptools/egg/pip metadata, and requiring setuptools.pkg_resources to get
> a version at runtime.
>
> I note that PEP8 uses __version__ as an example of a "module level dunder"
> -- but only suggests where it should be put, not how it be used :-)
>
> Of course, there will be a need to update the PEP to match current
> practice (and setuptools and pip)
>
> Or should this be brought up on The Distutils-SIG list?
>
> -CHB
>
> ,--
> Christopher Barker, PhD (Chris)
>
> Python Language Consulting
> - Teaching
> - Scientific Software Development
> - Desktop GUI and Web Development
> - wxPython, numpy, scipy, Cython
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