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Date: Fri, 24 Jan 2014 10:03:15 -0600
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Subject: Re: datetime as subclass of date
From: Skip Montanaro <skip@pobox.com>
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Xref: csiph.com comp.lang.python:64691

One thing that always reinforced my notion that
issubclass(datetime.datetime, datetime.date) should be False is that
the presence of of date and time methods gives me a mental image of
delegation, not inheritance. That is, it "feels" like a datetime
object is the aggregation of a date object and a time object, not a
specialized date object with some added time machinery mixed in.

Skip