> As I see it, any code that uses your new counter object will need to
> deal with instantiating it somewhere
...
> others might have a
> similar question when wondering how best to actually implement it and
> ensure the variable name they wish to use for the counter is not
> taken, and that they're not unnecessarily instantiating multiple
> Counter objects for no reason.

The way I'm using counters, they are hardwired into the code right at
the time counter info is needed to be retrieved or set.  I do the
instantiation right at that point.  For my app, I guarantee variable
names are OK just via code review and making each group of counters
has a special prefix name so there can't be conflict across groups of
counters.

I'm still relatively new to python web apps, so I can use educating
here as well, but my understanding was a request created a limited
lifecycle for the request handler and instantiated models, unless you
put it in the global space.  So if you really want to be efficient,
you could create the counters globally so they are kept across
requests some times.  But even if you are dynamically creating
multiple instances of Counter objects, there shouldn't be much of a
performance penalty or access issue because these objects are so
lightweight and the very nature of a web app where the whole response
gets recreated each request.

Best,
Bill
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