pip download option with all wheels

[graingert]

• Pip version: 9.0.1
• Python version: 3.6
• Operating system: Ubuntu

Description:

Allow pip download --all to download all possible tags.

What I've run:

// REPLACE ME: Paste a log of command(s) you ran and pip's output, tracebacks, etc, here

[xavfernandez]

Do you mean: pip download lxml==3.7.3 --all --no-deps would download the 13 differents available wheels ?

lxml-3.7.3-cp26-cp26m-win32.whl
lxml-3.7.3-cp27-cp27m-manylinux1_x86_64.whl
lxml-3.7.3-cp27-cp27mu-manylinux1_x86_64.whl
lxml-3.7.3-cp27-cp27m-win32.whl
lxml-3.7.3-cp27-none-win_amd64.whl
lxml-3.7.3-cp33-cp33m-manylinux1_x86_64.whl
lxml-3.7.3-cp34-cp34m-manylinux1_x86_64.whl
lxml-3.7.3-cp35-cp35m-manylinux1_x86_64.whl
lxml-3.7.3-cp35-cp35m-win32.whl
lxml-3.7.3-cp35-cp35m-win_amd64.whl
lxml-3.7.3-cp36-cp36m-manylinux1_x86_64.whl
lxml-3.7.3-cp36-cp36m-win32.whl
lxml-3.7.3-cp36-cp36m-win_amd64.whl

[graingert]

yes, that's correct.

[xavfernandez]

I'd say this is unlikely to be integrated via pip in the short term.
If you don't need any dependency/platform check, it would be simpler to go with requests and packaging.

[pfmoore]

Can you give an explanation of the use case where you'd need something like this?

[graingert]

I'd like to be able to download all available packages for calculating hashes, eg in pip-tools

[pfmoore]

Like @xavfernandez says, that sounds more like a use case for a custom program using the requests and packaging libraries. I doubt it's a sufficiently common requirement to be worth including in pip.

[graingert]

I'd also like to be able to download all available packages for creating caches for multiple types of build servers

[graingert]

also pip-tools is sufficiently coupled to pip that using requests/packaging is very difficult, and re-using the PackageFinder machinery is really handy.

[xavfernandez]

Using PackageFinder is unsupported as you must already know.
That said, it seems you could monkey-patch pip.wheel.Wheel.supported to always return True and get the same outcome (and again, it is unlikely to be integrated in pip).

[pradyunsg]

Since both @xavfernandez and @pfmoore say that this isn't something pip would be doing anytime soon, I'll close this.

Feel free to re-open this issue if you feel otherwise.