[Python-Dev] ANN: PEP 335: Overloadable Boolean Operators
Greg Ewing
greg at cosc.canterbury.ac.nz
Mon Sep 13 05:05:26 CEST 2004
> I like the PEP with 'and' and 'or', but isn't the 'not' special method
> essentially the inverse of __nonzero__?
No, because:
(1) __nonzero__ is restricted to returning a boolean result.
(2) There are other contexts besides 'not' in which __nonzero__
gets called.
Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury, | A citizen of NewZealandCorp, a |
Christchurch, New Zealand | wholly-owned subsidiary of USA Inc. |
greg at cosc.canterbury.ac.nz +--------------------------------------+
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