py37-idna fails to install (no destroot found)

[mouse07410 (Mouse)]

MacOS Mojave 10.14.3, Xcode-10.1, Macports-installed python-3.7 (everything up to date)

$ sudo port upgrade outdated && sudo port uninstall inactive
--->  Computing dependencies for py37-idna
--->  Installing py37-idna @2.8_0
Error: Failed to install py37-idna: no destroot found at: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_python_py-idna/py37-idna/work/destroot
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_python_py-idna/py37-idna/main.log for details.
Error: Problem while installing py37-idna
Error: Follow https://guide.macports.org/#project.tickets to report a bug.

Appears to be a collision between what Python-3.7 installs (other packages, pip-3.7) and what Macports does.

Attempts to activate py37-idna manually fail:

$ sudo port -f activate py37-idna
Error: port activate failed: Registry error: py37-idna is not installed.
$

Basically, I only need this for py37-sphinx, and I'd be happy to keep even sphinx under PIP - question is how.

[mouse07410 (Mouse)]

Main log

[mf2k (Frank Schima)]

wiki:ProblemHotlist#nodestrootfound

[mouse07410 (Mouse)]

Sorry, the Wiki says that the cure is sudo port clean .... The problem is - it did not help. I get consistent destroy not found after attempts to (re-)install.

[mouse07410 (Mouse)]

Doing sudo port install -fsn py37-idna resolved the problem.

[jmroot (Joshua Root)]

If you have precise steps to reproduce the "no destroot found" error, please add them to #55445.

The other problem here was basically ProblemHotlist#xmlwf. Yes, if you install python modules without using the py-* ports (e.g. with pip) but to the same location used by the ports, there will be a file conflict. Don't do that. Forcing the activation will "fix" the issue but leave a bunch of renamed files lying around.

[jmroot (Joshua Root)]

#55445