Am 21.03.2017 um 15:26 schrieb Wes Turner:
>
>
> On Tue, Mar 21, 2017 at 3:13 AM, Thomas Güttler <guettl...@thomas-guettler.de
> <mailto:guettl...@thomas-guettler.de>> wrote:
>
> AFAIK it is impossible to do this:
>
> pip install -e foo
>
> You need to use the repo URL up to now:
>
> pip install -e git+https://example.com/repos/foo#egg=foo
> <https://example.com/repos/foo#egg=foo>
>
> AFAIK the fast/short implementation of "pip install -e foo" does
> not work, since pip can't access metadata of package foo without
> downloading
> the whole package. Or am I wrong - is this possible?
>
>
> These read metadata from an already-downloaded package with a setup.py?:
>
> ```bash
> pip install -e .
> pip install -e "${VIRTUAL_ENV}/src/foo"
> ```
>
> You can download the JSON metadata from {PyPI, Warehouse} but IDK about
> {devpi, }?
I don't understand above sentence. Is downloading metadata possible or not?
> How is this usecase distinct from those solved for by?:
>
> - requirements.txt
> - pipenv install --dev pkgname
> - https://github.com/kennethreitz/pipenv
I have never heard of pipenv before. But have read the name
of the author before and for me "Kenneth Reitz" means "for human beings".
With other words: nice, simple and elegant API.
>
>
>
> It should be possible to download the whole package "foo",
> then look at the metadata which is provided by it. Take
> the canonical repo url, and then get the source from
> the repo.
>
> AFAIK there is no official way to define a "Canonical Repo URL" up to now.
>
> If I want to provide it for my custom packages. How could I do this?
>
>
> With JSONLD [1],
> you could just add a "source" attribute (with your own namespaced URI:
> "myns:source") to the package metadata:
>
> sourceURL: "git+ssh://g...@github.com/pypa/pip@master
> <http://g...@github.com/pypa/pip@master>"
> sourceURL: "git+https://github.com/pypa/pip@master";
>
> Or, we could add "sourceURL" (pending bikeshedding on the property name) to
> the metadata 3.0 PEP.
"sourceURL" sound good.
>
> ````bash
> pip clone pip
> pip install --clone --rev-override=develop pip
> ```
>
> And then, if you give a mouse a cookie,
> what about multiple sourceURLs: which is the canonical URL?
>
I think it only makes sense to publish one sourceURL. If someone publishes two
then ...
I don't know. Maybe the first wins?
Regards,
Thomas Güttler
--
http://www.thomas-guettler.de/
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