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If there's some level of confidence you're missing when using python because of the explicit types, you'd be better off making up for it using asserts rather than additional tests.

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I think his point is that Python developers often do wish that they could have type validation written into the language, rather than having to litter code with assertions.

I certainly feel that way.

Add MyPy to your build process (or just your local editing setup) and you can:

http://mypy-lang.org/

(Disclaimer: I've not used it, I just think it's a reasonable idea.)

I think his point might actually have been the point he made rather than the different point you made.

That's a roundabout way of saying "no you're wrong" without saying why you think so.

Why do you think so?

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