I have also seen this error, but it disappeared after a distclean. tdumont schrieb am Freitag, 14. Januar 2022 um 14:18:30 UTC+1:
> > Upgrading to 9.5rc1 on Ubuntu 21-10: > > - compilation ok. > > - make ptestlong: > ==================================== ERRORS > ==================================== > _____________ ERROR collecting sage/structure/sage_object_test.py > ______________ > ImportError while importing test module > '/usr/local/sages/dev/sage/src/sage/structure/sage_object_test.py'. > Hint: make sure your test modules/packages have valid Python names. > Traceback: > src/sage/structure/sage_object_test.py:3: in <module> > from .sage_object import SageObject > E ImportError: attempted relative import with no known parent package > =========================== short test summary info > =========================== > > -- You received this message because you are subscribed to the Google Groups "sage-release" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-release+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-release/53419cfa-a623-4c35-8f96-ab898e51bc02n%40googlegroups.com.
