为什么有两个内置的int（）函数？

Question

Looking at the python documentation here , there is both an int(x=0) and an int(x, base = 10). Why can't there just be a single function, something like int(x=0, base = 10)?

Answer 1

It is just a single function (or rather, a single type, which is a callable object). The documentation is just written that way to show that there are two ways to use it.