Python's pow operator (x**2) produces math.Pow(x, 2) in Go; however, in Go, math.Pow() only accepts floats, but in Python, ** handles ints as well as floats. This means the Python program:

x = 2
print(x**2)

Translates to

// package decl and imports elided
func main() {
	x := 2 // int
	fmt.Println(math.Pow(x, 2))
}

Which fails to compile with error: ./foo.go:10: cannot use x (type int) as type float64 in argument to math.Pow