[Python-Dev] Adding a conditional expression in Py3.0 (original) (raw)

Michael Hudson mwh at python.net
Tue Sep 20 18:34:23 CEST 2005

Guido van Rossum <guido at python.org> writes:

Unfortunately, if we were to accept Raymond's proposal, we'd have to revisit the discussion, since his proposal removes several ways we currently avoid the need.

In fact, I think Raymond's example is more properly considered an argument for adding a conditional expression than for removing the current behavior of the and/or shortcut operators; had we had a conditional expression, he wouldn't have tried to use the "x and y or z" syntax that bit him.

Indeed.

Given this realization, I'm now -1 on Raymond's idea, and +1 on adding a conditional expression. I believe (y if x else z) was my favorite last time, wasn't it? I've changed the subject accordingly.

It's not the version from the PEP, if that means anything at all...

Cheers, mwh

-- 34. The string is a stark data structure and everywhere it is passed there is much duplication of process. It is a perfect vehicle for hiding information. -- Alan Perlis, http://www.cs.yale.edu/homes/perlis-alan/quotes.html

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