[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

Irit Katriel added the comment: This doc has changed, and it's now like this: parameter_list::= defparameter ("," defparameter)* "," "/" ["," [parameter_list_no_posonly]] | parameter_list_no_posonly parameter_list_no_posonly ::= defparameter

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

Jim Fasarakis-Hilliard added the comment: Further patch for 3.6 and 3.7 to address `defparameter` change here too. -- Added file: http://bugs.python.org/file46078/3.6_3.7_func_def.patch ___ Python tracker

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

Jim Fasarakis-Hilliard added the comment: Further patch for `3.4` and `3.5`: Change `|` to `(` and fix `defparameter` to use `+` -- Added file: http://bugs.python.org/file46077/3.4_3.5_func_def.patch ___ Python tracker

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

Jim Fasarakis-Hilliard added the comment: Attached patche for Python 3.3 (change `defparameter` to use `+`). -- keywords: +patch Added file: http://bugs.python.org/file46076/3.3_func_def.patch ___ Python tracker

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

Changes by Martin Panter : -- stage: -> needs patch versions: +Python 3.6, Python 3.7 ___ Python tracker ___

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

R. David Murray added the comment: Ah, I see. (", " defparameter)* should instead be "+", or whatever the BNF equivalent is. -- ___ Python tracker ___

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

woo yoo added the comment: Code: >>>def f(a, *): >>>print(a) （SyntaxError occurs here） -- ___ Python tracker ___

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

R. David Murray added the comment: What do you mean by "a bare * followed by no parameters"? That is, what is the thing that is considered invalid that you are saying the BNF rules allow? I'm looking for a code snipped that produces a syntax error. -- nosy: +r.david.murray

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

woo yoo added the comment: Nor the rules in Python-3.6.0 excludes the bare '*' following no parameters. -- ___ Python tracker ___

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

woo yoo added the comment: There is a few difference between Python-3.5.2 and Python-3.6.2 concerning the EBNF rules even though the parenthesis bug is fixed. -- ___ Python tracker

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

Jim Fasarakis-Hilliard added the comment: See issue<9232> that changed the docs on function definitions. These changes aren't reflected in the 3.5 documentation though, you'll find them in the 3.6 docs. The linked grammar is probably missing an opening parentheses from what I can tell, i.e

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

woo yoo added the comment: And i find that the current rules of parameter_list includes a bare '*',which is illegal in practice. -- ___ Python tracker

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

woo yoo added the comment: Just the right parenthesis is redundant, ignore other words. -- ___ Python tracker ___

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

woo yoo added the comment: Here is the link https://docs.python.org/3/reference/compound_stmts.html#function-definitions -- ___ Python tracker ___

[issue28978] a redundant right parentheses in the EBNF rules of parameter_list

New submission from woo yoo: Quote the documentation as below: > parameter_list ::= (defparameter ",")* | "*" [parameter] ("," defparameter)* ["," "**" parameter] | "**" parameter | defparameter [","] ) The last right parenthesis is