>Going from a statically typed language to using python to do number crunching genuinely makes me want to vomit. I don't understand how people convince themselv

>Going from a statically typed language to using python to do number crunching genuinely makes me want to vomit. I don't understand how people convince themselves that it's productive to write so many tests and (say) check types at runtime etc. Totally agree, although I think strong typing is also important, not just static typing. C/C++ has a weak type system because of the automatic conversions it allows. The problem with this discussion however is that the people that push for dynamic languages usually do it because it's "so fast" to do something in Python, and they won't test their software anyway.