map is different because it is a built-in type and not a function. The 2 forms of accessing an element of a map is specified by the Go Language Specification: Index Expressions and backed by the compiler. With functions you can’t do this. If a function has 2 return values, you have to “expect” both … Read more
Absolutely (for the example you provided). Tuples are first class citizens in Python There is a builtin function divmod() that does exactly that. q, r = divmod(x, y) # ((x – x%y)/y, x%y) Invariant: div*y + mod == x There are other examples: zip, enumerate, dict.items. for i, e in enumerate([1, 3, 3]): print “index=%d, … Read more
In case of a multi-value return function you can’t refer to fields or methods of a specific value of the result when calling the function. And if one of them is an error, it’s there for a reason (which is the function might fail) and you should not bypass it because if you do, your … Read more