python-pil-doc fails to build in jammy

[Jeremy Bícha]

Full build logs
---------------
https://launchpad.net/ubuntu/+source/pillow/9.0.0-1build1

Build log excerpt
-----------------
dh_installdocs -ppython-pil-doc docs/_build/html
dh_installdocs: warning: Cannot auto-detect main package for python-pil-doc. If the default is wrong, please use --doc-main-package
cp: cannot stat 'docs/_build/html': No such file or directory
dh_installdocs: error: cp --reflink=auto -a docs/_build/html debian/python-pil-doc/usr/share/doc/python-pil-doc returned exit code 1

Shorter build log excerpt
-------------------------
cp: cannot stat 'docs/_build/html': No such file or directory

Discussion
----------
I think this build failure was triggered because Ubuntu currently has both python 3.9 and 3.10 as supported versions.

This bug is currently blocking the completion of this transition.
https://people.canonical.com/~ubuntu-archive/transitions/html/auto-libwebp.html

[Heinrich Schuchardt (xypron)]

The package pillow 9.0.0-1ubuntu1 built in ppa:xypron/merge-from-debian and needs a sponsor.

[Jeremy Bícha (jbicha)]

I don't think we want the package to Build-Depend on itself.

[Heinrich Schuchardt (xypron)]

This seems to be the culprint. The string '3.10' does not fit into 3 characters:
PY3VER := $(shell python3 -c 'import sys; print(sys.version[:3])')

ls /<<PKGBUILDDIR>>/build/ -la
total 16
drwxrwxr-x 4 root root 4096 Feb 15 11:37 .
drwxr-xr-x 10 root root 4096 Feb 15 11:38 ..
drwxrwxr-x 3 root root 4096 Feb 15 11:37 lib.linux-x86_64-3.10
drwxrwxr-x 3 root root 4096 Feb 15 11:37 temp.linux-x86_64-3.10
echo PY3VER: '3.1'
PY3VER: 3.1
echo PY3VERS: '3.10'
PY3VERS: 3.10

[Heinrich Schuchardt (xypron)]

pillow-9.0.0-1build1-9.0.0-1ubuntu2.debdiff avoid any additional dependency. Instead it fixes the incorrect determination of PYTHONPATH.

[Jeremy Bícha (jbicha)]

I uploaded this to jammy for you and unsubscribed ubuntu-sponsors. Thank you!