Simple use go as lib

example.go

package main

import "C"
import "fmt"

func main() {}

//export Add
func Add(a int, b int) int {
	fmt.Printf("Add %d with %d\n", a, b)
	return a + b
}

use.py

import ctypes

lib = ctypes.cdll.LoadLibrary('./example.dll')

# use Add
s = lib.Add(100, 2)
print(f'Result: {s}')

• build lib with command
  go build -buildmode=c-shared -o example.dll example.go
• Run python
  python use.py