[Python-ideas] Accepting "?" as a valid character for identifiers

[Masklinn]

On 2010-10-31, at 17:55 , Andre Roberge wrote:
> In some languages (e.g. Scheme, Ruby, etc.), the question mark character (?)
> is a valid character for identifiers.  I find that using it well can improve
> readability of programs written in those languages.
> 
> Python 3 now allow all kinds of unicode characters in source code for
> identifiers. This is fantastic when one wants to teach programming to
> non-English speakers and have them use meaningful identifiers.
> 
> While Python 3 does not allow ?, it does allow characters like ʔ  (
> http://en.wikipedia.org/wiki/Glottal_stop_%28letter%29)  which can be used
> to good effect in writing valid identifiers such as functions that return
> either True or False, etc., thus improving (imo) readability.
> 
> Given that one can legally mimic ? in Python identifiers, and given that the
> ? symbol is not used for anything in Python, would it be possible to
> consider allowing the use of ? as a valid character in an identifier?

An other interesting postfix in the same line is "!" (for mutating methods).