Python with Go

package main

import "C"

//export fib
func fib(n uint) uint {
    if n <= 1 {
        return n
    }
    return fib(n-1) + fib(n-2)
}

func main() {}

go build -o fib.so  -buildmode=c-shared fib.go

from ctypes import *

lib = cdll.LoadLibrary("./fib.so")

## arg
lib.fib.argtypes = [c_longlong]
## return
lib.fib.restype = c_longlong
print "fib  %d" % lib.fib(40)

#!/usr/bin/env python

def fib(n):
    if n <= 1:
        return n
    else:
        return fib(n-1) + fib(n-2)

print(fib(40))

#time python fib_go.py
fib  102334155

real	0m1.171s
user	0m1.105s
sys	0m0.071s

#time python fib_go.py
102334155

real	0m46.598s
user	0m46.449s
sys	0m0.030s

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