py27-matplotlib @2.2.5: couldn't read file mplsetup.cfg: no such file or directory

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-13_arm64-builder/builds/1040/steps/install-port/logs/stdio

--->  Patching mplsetup.cfg: s|@@PREFIX@@|/opt/local|
DEBUG: couldn't read file "/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_python_py-matplotlib/py27-matplotlib/work/matplotlib-2.2.5/mplsetup.cfg": no such file or directory

[reneeotten (Renee Otten)]

thanks Ryan and apologies for the oversight... I did some clean-up of the Portfile after removing EOL Python versions without dependents but didn't move setting the configfile to the correct place.

We should really try to purge all these py27 subports to avoid all these additional code to keep a pre-historic Python version running. I'd be in favor of just setting a deadline for ending Python 2.7 support and if ports cannot be transitioned to a recent Python3 port they'll be removed at that point...

[reneeotten (Renee Otten)]

In 71d21b3187dc9733f910556102fbfcd406ad44d9/macports-ports (master):

py-matplotlib: fix filename for configfile

Closes: #66996

[ryandesign (Ryan Carsten Schmidt)]

Replying to reneeotten:

We should really try to purge all these py27 subports to avoid all these additional code to keep a pre-historic Python version running. I'd be in favor of just setting a deadline for ending Python 2.7 support and if ports cannot be transitioned to a recent Python3 port they'll be removed at that point...

Don't forget, however, that the MacPorts Buildbot setup, which is installed using MacPorts ports, uses Python 2.7. This Python 2.7 module is not involved in that but others are and so those should not be removed. Upstream support for Python 2.7 only ended three years ago; it's hardly "pre-historic". Updating to use Python 3 is not always trivial. For example, we use Buildbot 0.8, which is not compatible with Python 3. Buildbot 0.9 and later are, in my view, a different and inferior piece of software, at least as far as the web interface is concerned.