[Python-Dev] conditional expressions - add parens?

Jim Jewett jimjjewett at gmail.com
Mon Mar 6 18:17:55 CET 2006

 Now that we have started to see conditional expressions ... I would like to
see them parenthesized.  The parens aren't as important as they are with
generator expressions, but ... they matter.

>From a recent checkin --

    level = 0 if "absolute_import" in self.futures else -1

Mentally, I can't help parsing that as "level = 0" plus comments that turn
out to be code that triggers backracking.

When the expressions (particularly the true case) are longer, it gets even

I think that adding parentheses would help, by at least signalling that the
logic is longer than just the next (single) expression.

    level = (0 if "absolute_import" in self.futures else -1)

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