> There are many places in the standard library where some code either > iterates over a literal list or checks for membership in a literal > list. I'm curious if it would be considered productive and useful > to go through and change those places to iterate over/check for > membership in literal tuples instead fo lists. The tuple, I think, > more closely reflects the read-only literal nature of the code and > is slightly faster to boot. -1. I bet you can't prove the speed-up. Tuples are for heterogeneous data, list are for homogeneous data. Tuples are *not* read-only lists. Tuples require extra care in case the number of elements shrinks to 1. --Guido van Rossum (home page: http://www.python.org/~guido/)
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