test_go_performance.go

package main

import (
	"fmt"
	"time"
)

func main() {
	st := time.Now()
	n := 100000000
	for i := 0; i < n; i++  {
	}
	fmt.Println(fmt.Sprintf("%f seconds", float32(time.Now().Sub(st).Microseconds()) / 1000000))
	// 0.058280 seconds
}

test_py_performance.py

from datetime import datetime
st = datetime.now()
n = 100000000
_ = [i for i in range(n)]
ed = datetime.now()
d = ed - st
print('%f seconds' % (d.seconds + d.microseconds / 1e6))
# 3.965864 seconds