Actually, you don't have to enable warnings, as the construct won't compile: 
    $ perl -wle 'print(localtime)[3]'
    syntax error at -e line 1, near ")["
    Execution of -e aborted due to compilation errors.
    $

[download]

The warning you are referring to is silly. It'll trigger in constructs like: 

    print (3) + 4

[download]

but only if you have a single space between 'print' and the opening parenthesis.

And you thought Python was evil because it gave meaning to whitespace.

Abigail

In reply to Re: (localtime)[3] vs. ((localtime)[3]) by Abigail-II
in thread (localtime)[3] vs. ((localtime)[3]) by Taulmarill

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