[ python-Bugs-1505081 ] Wrong grammar

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Bugs item #1505081, was opened at 2006-06-12 19:19
Message generated for change (Settings changed) made by tim_one
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Category: Documentation
>Group: Not a Bug
>Status: Closed
>Resolution: Invalid
Priority: 5
Submitted By: Milind (t-milich)
Assigned to: Nobody/Anonymous (nobody)
Summary: Wrong grammar

Initial Comment:
The Python and test is written as:

and_test ::= not_test | and_test "and" not_test 

It should be changed to :

and_test ::= not_test |  not_test "and" and_test


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>Comment By: Tim Peters (tim_one)
Date: 2006-06-13 02:50

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The grammar is correct as-is anyway, so closing this as
invalid ("and" is left-associative, that's critical to
correct understanding of its short-circuit semantics, and
the production for and_test is left-recursive to make that
clear:  "a and b and c" must be parsed as "(a and b) and c",
not as "a and (b and c)" as the suggested change would force).

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Comment By: Georg Brandl (gbrandl)
Date: 2006-06-13 02:00

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What problem does this cause for you?

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