sub-classing datetime
marduk
marduk at python.net
Thu Feb 7 14:16:14 EST 2013
On Thu, Feb 7, 2013, at 10:13 AM, Colin J. Williams wrote:
> I'm just making the transition from 2 to 3 for one module.
>
> With Python 2.7, I had the benefit of mx datetime, but this is not yet
> available for Python 3.2.
>
> I find that the 3.2 datetime is not subclassable, for reasons that were
> known some years back.
>
> It would help if there was a note in the docs listing the builtin
> classes which are not subclassable.
>
> I am retreating to the use of a function.
What makes you think it's not subclassable?:
import datetime
class MyDateTime(datetime.datetime):
def what_date(self):
print(self)
md = MyDateTime.now()
md.what_date()
Seems to work even in 2.7 (excluding the print function).
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