parse-time optimizations

Marcin 'Qrczak' Kowalczyk qrczak at knm.org.pl
Fri Jun 1 22:18:49 CEST 2001


1 Jun 2001 02:32:10 GMT, jcm <grumble at usa.net> pisze:

>> Python's evaluation is left to right, Hence
> 
> The + operator has this behavior (left associativity).
> The ** operator, on the other hand, is right-associative.

Associativity of an operation (the property that a@(b at c) = (a at b)@c),
syntactic associativity (is a at b@c interpreted as a@(b at c) or (a at b)@c)
and the order of evaluation (is a or b evaluated earlier in a at b)
are three different things. Don't confuse them.

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