Dear Dima, I found something strange in this error message. -------- anirojas@MacBook-de-Anita ~ % /Applications/SageMath/sage --notebook=export --list
File "/Applications/SageMath/local/bin/sagenb-export" File "/Applications/SageMath/local/lib/python3.7/site-packages/sagenb_export/cmdline.py", File "/Applications/SageMath/local/lib/python3.7/site-packages/sagenb_export/actions.py", File "/Applications/SageMath/local/lib/python3.7/site-packages/sagenb_export/actions.py", File "/Applications/SageMath/local/lib/python3.7/site-packages/sagenb_export/sagenb_reader.py" On MacOS, normally, we see --------- /Applications/SageMath-9.0.app/sage --notebook=export --list /Applications/SageMath-9.0.app/Contents/Resources/sage/local/lib/python3.7/site-packages/sagenb_export/... I do not understand why "Contents/Resources/sage/" disappeared. More strangely, functions defined in these files are actually executed. Is it possible some problem in setting PATH leads to python3 bundled with Catalina controls Sagemath instead of python3.7 included in Sagemath? I do not have Catalina installed. So, I cannot verify anything on it. I only heard Catalina now has python3 not python2. The default shell changed to zsh instead of bash. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/bf88b236-c428-4d8a-80c3-0fced449a0e3%40googlegroups.com.