Greetings to Python users,
I'm trying to parse Python code using the grammar supplied with the
documentation set, and have a question on the grammar for function
parameters:
funcdef: 'def' NAME parameters ['->' test] ':' suite
parameters: '(' [typedargslist] ')'
typedargslist: ((tfpdef ['=' test] ',')*
('*' [tfpdef] (',' tfpdef ['=' test])* [',' '**' tfpdef]
| '**' tfpdef)
| tfpdef ['=' test] (',' tfpdef ['=' test])* [','])
tfpdef: NAME [':' test]
>From what I understand, a naked asterisk - i.e. it is not a prefix to an
identifier - is not a valid parameter, but the grammar explicitly
allows it by making the identifier that immediately follows the
asterisk optional.
Are there cases where naked asterisk is allowed as a function
parameter? If not, would it be correct for the grammar to specify the
identifier trailing asterisk as mandatory?
Thanks for any insight.
Jay
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