A simple single line, triple-quoted comment is giving syntax error. Why?

[Ian Kelly]

On Thu, Mar 26, 2015 at 12:29 PM, Ian Kelly <ian.g.kelly at gmail.com> wrote:
> On Thu, Mar 26, 2015 at 10:45 AM, Thomas 'PointedEars' Lahn
>> No, in the used flavour of EBNF the unquoted “+” following a goal symbol
>> clearly means the occurrence of *at least one* of the immediately preceding
>> symbol, meaning either one *or more than one*.
>
> It means one or more *tokens*, not one or more literals.

Although reading the documentation, it seems that it also conflates
string literals with tokens, so on that I'll have to concede the
point.

https://docs.python.org/3.4/reference/lexical_analysis.html#string-and-bytes-literals