Modernize setuptools bootstrap script

[lpsinger]

The old distribute_setup.py bootstrap script does not even work any more, because an exception is raised when it makes a request from PyPI using a non-https URL (urllib.error.HTTPError: HTTP Error 403: SSL is required). This made it impossible to install pyxmpp2 using pip.

Switch to using the latest bootstrap script ez_setup.py from the modern Setuptools project.

[Jajcus]

Thank you for your contribution.

I am all in favour of removing distribute_setup.py, but the included ez_setup.py script states in its description:

This method is DEPRECATED. Check pypa/setuptools#581 for more details.

I don't think we should use it. Instead, we should just modernize setup.py, removing all traces of distribute.

[lpsinger]

OK, I updated the PR accordingly.

[Jajcus]

Now the PR also adds pyproject.toml file with now information about it in the commit. In fact I have just learned about PEP 518 right now. I don't think we need it. As added, it contains the defaults tools should use any way. And I don't think 'wheel' is actually needed now to build PyXMPP2.

I would also prefer the change as a single commit – could you squash the two commits into one? The only thing left will probably be removal of ez_setup and distribute import from setup.py.

[lpsinger]

Now the PR also adds pyproject.toml file with now information about it in the commit. In fact I have just learned about PEP 518 right now. I don't think we need it. As added, it contains the defaults tools should use any way. And I don't think 'wheel' is actually needed now to build PyXMPP2.

I would also prefer the change as a single commit – could you squash the two commits into one? The only thing left will probably be removal of ez_setup and distribute import from setup.py.

Done! After merging this, would you please roll a new release so that it is pip install-able?

[Jajcus]

Merged, thanks.

I'll try to make a release this weekend. I have mixed feelings, as PyXMPP is a bit abandoned now, but if it works and there are people interested, I can push this as a new 'release'.

[lpsinger]

I'll try to make a release this weekend. I have mixed feelings, as PyXMPP is a bit abandoned now, but if it works and there are people interested, I can push this as a new 'release'.

We still use pyxmpp in the LIGO and Virgo gravitational-wave observatories, although we have been looking at more modern alternatives. It would be very nice to get a new release of pyxmpp2 that works with pip so that we have a Python 3 compatible xmpp library if we end up sticking with xmpp for our next observing run.

[Jajcus]

We still use pyxmpp in the LIGO and Virgo gravitational-wave observatories,

Wow! Then I will make the release soon. :-)

[Jajcus]

Done.

[lpsinger]

Thank you! As you can see I'm already using this.