[issue4442] datetime not subclassable in the usual way

[Chris Withers]

Chris Withers <chris at simplistix.co.uk> added the comment:

But that isn't documented anywhere...

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assignee:  -> georg.brandl
components: +Documentation
nosy: +georg.brandl
type: feature request -> 

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<http://bugs.python.org/issue4442>
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