>>>>> "HN" == Hrvoje Niksic <hniksic at srce.hr> writes:
HN> I wonder how expensive it is to trap and raise exceptions in
HN> Python
If the class-based exception is both raised and caught in C, it is
never instantiated, so it's very fast. If the exception is raised or
caught (or both) in Python, then you pay for instantiation.
-Barry