'info script' on Mac Tcl/Tk 8.3.1 - 8.3.2;
(8.3.0 and earlier works):
Most often fails if doing File/Source from the menu,
and then pick a script which contains [info script]. Usually the result is just empty,but is sometimes ":" and the [pwd] gives the install folder. If doing 'source anyPath' then everything works ok. It happens that when forst doing 'source anyPath', and the File/Source from the menu, [info script] returns the correct path; the result is unpredictable in general.