Returning none

[Aahz Maruch]

In article <7qidi6$nbb$1 at towncrier.cc.monash.edu.au>,
Jonathan Giddy <jon at rdt.monash.edu.au> wrote:
>
>This requires that we always use the result of a call to a real function,
>even if we just assign it to a dummy variable.  And that means someone
>will one day spend time trying to find where the dummy variable is used,
>instead of instantly being aware that the function is only called for its
>side effects.
>
>For example, FileObject.close needs to be a function to return the exit
>status of a popen process.  Hence, every file close will need to be
>assigned (or used in some way).

Your example does not illustrate your point IMO, because there *is* a
potentially useful value returned.  If a function returns a value that
is truly never used, there is Something Wrong.
--
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