For review: PEP 308 - If-then-else expression

[Andrew Koenig]

Andrew> My scan of the linux source suggests that most uses of ?: are of this
Andrew> sort, eg
Andrew>       mode_wanted ? "en" : "dis"
Andrew> could be written in Python as
Andrew>     ["en", "dis"][mode_wanted]

Yes, they could be -- but in the process of translating the code, you
inverted the condition!  The original yields "en" if mode_wanted is
true, and the rewrite yields "en" if mode_wanted is false.

To me, that fact is a strong argument in favor of PEP 308 :-)

-- 
Andrew Koenig, ark at research.att.com, http://www.research.att.com/info/ark