isinstance() necessary and helpful, sometimes

[Aahz Maruch]

In article <a2r97q$dpi$1 at serv1.iunet.it>, Alex Martelli <aleax at aleax.it> wrote:
>
>Wouldn't we want in this case to treat X**1.0 the same as X**1 the
>same as X**1L...?  A test such as exponent==int(exponent) would
>then seem to be more general and useful than isinstance(exponent,int).

I'd tend to code exponent==long(exponent) if I were targetting versions
of Python < 2.2.
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