Open this folder ~/Library/TeXShop/Engines/Inactive/Sage/ and follow the instructions in About Sage.pdf and all should work fine. Make sure you have the Sage.app version installed.
Open this folder ~/Library/TeXShop/Engines/Inactive/Sage/ and follow the instructions in About Sage.pdf and all should work fine. Make sure you have the Sage.app version installed.
For $TeX$Shop users needing more assistance, I have written a ~50 page guide that should help.