Patch from Bruce to produce a good error message when using '.' rather than ':', add tracebacks, and avoid some extra processing.
Patch from Bruce to produce a good error message
when using '.' rather than ':', add tracebacks, and avoid
some extra processing.

R1dO/scite_clone,R1dO/scite_clone,R1dO/scite_clone,R1dO/scite_clone