[Python-Dev] conditional expressions - add parens? (original) (raw)

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 worse.

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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