File "/usr/lib64/python3.6/site-packages/setuptools/config.py", line 265, in parser 'files are not accepted'.format(key)) ValueError: Only strings are accepted for the license field, files are not accepted * ERROR: dev-python/weasyprint-43::gentoo failed (compile phase): * (no error message) * ------------------------------------------------------------------- This is an unstable amd64 chroot image at a tinderbox (==build bot) name: 17.1-desktop-gnome_libressl_20190302-092752 ------------------------------------------------------------------- gcc-config -l: [1] x86_64-pc-linux-gnu-8.3.0 * Available Python interpreters, in order of preference: [1] python3.6 [2] python2.7 (fallback) Available Ruby profiles: [1] ruby24 (with Rubygems) [2] ruby25 (with Rubygems) [3] ruby26 (with Rubygems) * java-config: The following VMs are available for generation-2: *) IcedTea JDK 3.10.0 [icedtea-bin-8] Available Java Virtual Machines: [1] icedtea-bin-8 system-vm emerge -qpvO dev-python/weasyprint [ebuild N ] dev-python/weasyprint-43 USE="jpeg tiff -jpeg2k -test" PYTHON_TARGETS="python3_6 -python3_4 -python3_5"
Created attachment 567644 [details] emerge-info.txt
Created attachment 567646 [details] dev-python:weasyprint-43:20190303-165424.log
Created attachment 567648 [details] emerge-history.txt
Created attachment 567650 [details] environment
Created attachment 567652 [details] etc.portage.tbz2
Created attachment 567654 [details] temp.tbz2
It seems that this issue has been reported upstream a while ago, see https://github.com/Kozea/WeasyPrint/issues/806, and it is fixed in more recent releases (>=45) of weasyprint. It is caused by a change in the handling of the license in setup.cfg when using the more recent setuptools versions. The fix seems to be quite straightforward (use the field 'license_file' to point to the file with the license instead of the field 'license'). I attach a patch file with the required changes. I have tested the patch on my system and with it weasyprint compiles correctly.
Created attachment 574502 [details, diff] Modify setup.cfg to be compatible with the more recent setuptools version Tested with setuptools 41.0.1. With setuptools versions older than 40.8.0 the license_file field will be silently ignored. While this is not optimal, it reflects the behavior of the more recent weasyprint versions, see https://github.com/Kozea/WeasyPrint/commit/95217c6c48795806821c715e18021c4b8fb817d3#diff-380c6a8ebbbce17d55d50ef17d3cf906 .
Weasyprint has been bumped to 51, which contains the fix.
