pyrsistent needs wheels

[JanneKiiskila]

Long story short - as per PelionIoT/manifest-tool#27 it turns out pyrsistent needs some wheels.
It does not currently specify them in it's own requirements.txt, so that should be added there.

[JanneKiiskila]

This is from a colleague of mine; @moshe Shahar

After investigating a bit more, this behavior has changed from pip v20.1.1, and from that version, you will see:
Using legacy 'setup.py install' for pyrsistent, since package 'wheel' is not installed.

The correct fix is to add setup_requires = wheel to setup.py in the packages that don’t provide pre-built wheels such as pyrsistent.

[jaraco]

I believe this is a dupe of #196.

Also, please don't use setup_requires. Instead, use pyproject.toml and build-requires (PEP 518).

[johnthagen]

Should be fixed in #227

[tobgu]

Thanks @johnthagen for contributing to this happening. I've released wheels for 0.17.4rc1 now. It would be great with some testing and feedback before I cut a proper release if anyone has the chance to do so.

[tobgu]

Release 0.18.0 is has wheels built.