pplpy 0.8.4-4 is marked for autoremoval from testing on 2020-06-16
It (build-)depends on packages with these RC bugs:
959623: ppl: FTBFS: swi_cfli.hh:351:35: error: cannot convert ‘int*’ to ‘size_t*’ {aka ‘long unsigned int*’}
960131: swi-prolog: flaky autopkgtest: test set "file" ... aborted