New changesetbcd3a1a18d841338f57c39f6a7de8cf14d0c3e03 by Terry Jan Reedy in branch 'master':bpo-33905: Add test for idlelib.stackview.StackBrowser. (GH-7852)https://github.com/python/cpython/commit/bcd3a1a18d841338f57c39f6a7de8cf14d0c3e03

New changesetd554414d981a8bfe38cc5df5751bc3efcb0c36c3 by Miss Islington (bot) in branch '3.7':bpo-33905: Add test for idlelib.stackview.StackBrowser. (GH-7852)https://github.com/python/cpython/commit/d554414d981a8bfe38cc5df5751bc3efcb0c36c3

New changeseta0622f1071164bc67a307cfec1173c295901c4b9 by Miss Islington (bot) in branch '3.6':bpo-33905: Add test for idlelib.stackview.StackBrowser. (GH-7852)https://github.com/python/cpython/commit/a0622f1071164bc67a307cfec1173c295901c4b9

(My initial messages contained a mistaken idea based on a mis-remembering the details sys.last values and exceptions.)If an exception is not caught and a traceback is printed, sys.last_type, sys.last_value, and sys.last_traceback are set.  When an exception is caught, the last_ x values are not touched, but the same are available by calling sys.exc_info.  Stackview accessed all 3 sys.last_x values, but they are not normally set when testing because exception are caught.  The test sets them from a sys.exc_info after catching an exception.