[Python-Dev] PEP 203 Augmented Assignment

[Greg Ewing]

> Try to call __getslice__ with unconverted start, stop and step
> If it fails with a TypeError, and step is not None, raise the above error
> Else, convert start and stop to ints like the current normal slice
> behaviour, and try __getslice__ the old way.

NO!!!

If my __getslice__ method has a bug which results in a type
error, I want to get a traceback about it, not have it silently
swallowed.

Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury,	   | A citizen of NewZealandCorp, a	  |
Christchurch, New Zealand	   | wholly-owned subsidiary of USA Inc.  |
greg@cosc.canterbury.ac.nz	   +--------------------------------------+