On Thursday, November 16, 2023 at 6:48:47 AM UTC-8 Eric Gourgoulhon wrote:
[...] the file SAGE_ROOT/build/pkgs/pillow/spkg-install.in contains the line: PILLOW_CONFIG_SETTINGS="-C debug=true -C jpeg=disable $PILLOW_CONFIG_SETTINGS" Is there any reason for "jpeg=disable" ? This was done in 2016, see https://github.com/sagemath/sage/issues/20021#issuecomment-1417764945, apparently for platform support reasons Providing PIL without jpeg support seems quite weird... I agree This issue is not new and was already noticed already 5 years ago: https://ask.sagemath.org/question/43298 A side effect of this is that the IPyhon rendering of PIL Images via the rich output mechanism is broken in Sage 10.2.rc3 (but, for some reasons, not in Sage 10.1) This temporarily worked accidentally because Pillow had made an incompatible change to the format of its configuration settings. I repaired that as part of the Pillow 10 upgrade in https://github.com/sagemath/sage/pull/36320 If we agree to restore jpeg support in Pillow, I have prepared a branch that does this for Sage 10.2 (simply suppressing the option "jpeg=disable"): https://github.com/egourgoulhon/sage/tree/pillow_jpeg and I am happy to submit a PR for this. Yes, please. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/3ff29e9e-3e10-4630-94b4-5d061e99f82fn%40googlegroups.com.
