while true: !!!

Greg Ewing greg at cosc.canterbury.ac.nz
Wed Dec 20 04:17:57 CET 2000


Tim Hochberg wrote:
> 
> If I attempt to summarize I get the following for false items:
> 
> * None
> * Anything that equals zero (Including a class instance with __nonzero__
> returning false)
> * An empty sequence (Including a class instance with __len__ returning 0)

The fact that it's taken about three attempts by
experienced Python people to come up with a full
and accurate characterisation of what constitute
'true' and 'false' in Python suggests that things 
could have been a lot simpler if there had been a 
dedicated boolean type!

-- 
Greg Ewing, Computer Science Dept, University of Canterbury,	  
Christchurch, New Zealand
To get my email address, please visit my web page:	  
http://www.cosc.canterbury.ac.nz/~greg



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