It definitely isn't[1]. Python has both floats and integers. He's sort of right though that it doesn't have "true integers ... which ... improve performance" si

It definitely isn't[1]. Python has both floats and integers. He's sort of right though that it doesn't have "true integers ... which ... improve performance" since Python's numeric types are boxed and not exactly fast (unless you use numpy). Also, which "many other" languages have only doubles, aside from JavaScript? [1] https://docs.python.org/3/reference/datamodel.html#the-standard-type-hierarchy https://docs.python.org/3/reference/datamodel.html#the-stand...