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classification
Title: Wrong grammar
Type: Stage:
Components: Documentation Versions:
process
Status: closed Resolution: not a bug
Dependencies: Superseder:
Assigned To: Nosy List: georg.brandl, t-milich, tim.peters
Priority: normal Keywords:

Created on 2006-06-12 23:19 by t-milich, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (3)
msg28791 - (view) Author: Milind (t-milich) Date: 2006-06-12 23:19 
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
msg28792 - (view) Author: Georg Brandl (georg.brandl) * (Python committer) Date: 2006-06-13 06:00 
Logged In: YES 
user_id=849994

What problem does this cause for you?
msg28793 - (view) Author: Tim Peters (tim.peters) * (Python committer) Date: 2006-06-13 06:50 
Logged In: YES 
user_id=31435

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).
History
Date User Action Args
2022-04-11 14:56:18adminsetgithub: 43492
2006-06-12 23:19:27t-milichcreate