On 2/15/14 7:18 PM, Chris Angelico wrote:
http://docs.python.org/3.3/reference/expressions.html#operator-precedence
"""
Operators in the same box group left to right (except for comparisons,
including tests, which all have the same precedence and chain from
left to right...)
"""
Comparisons, including tests, are all in the same box. Grammatically,
this wording puzzles me. Everything groups L->R except these, which
group L->R?
I think the "except" is referring to "group" vs. "chain". Comparison
operators don't group left to right, they chain left to right:
a + b + c
is the same as:
(a + b) + c
but:
a < b < c
is not the same as:
(a < b) < c
--
Ned Batchelder, http://nedbatchelder.com
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