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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Sun, 15 Jun 2014 01:22:50 -0600
Subject: Re: Python's numeric tower
To: Python <python-list@python.org>
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Xref: csiph.com comp.lang.python:73286

On Sat, Jun 14, 2014 at 8:51 PM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> Does anyone know any examples of values or types from the standard
> library or well-known third-party libraries which satisfies
> isinstance(a, numbers.Number) but not isinstance(a, numbers.Complex)?

>>> issubclass(decimal.Decimal, numbers.Number)
True
>>> issubclass(decimal.Decimal, numbers.Complex)
False