Simple random number output to a file, as in http://blog.cdleary.com/2012/06/simple-selfish-and-unscientific-shootout/

randomInt32.jl

function writeStuff(n)
    f=open("data.txt","w")
    for el in 1:n
        r=randi(Int32)
        println(f,r)
    end 
    close(f)
end

N = 1000_000
tic();writeStuff(N);toc()

randomInt32.py

import random
import sys 

def writeStuff(n):
    random.seed()

    with open('data.txt', 'w') as file:
        for i in xrange(n):
            r = random.getrandbits(31)
            print >> file, r
        file.close() 

N = 1000000
writeStuff(N)

writingSpeed.jl

function writeStuff(n)
    f=open("data.txt","w")
    for el in 1:n 
        r="12"
        println(f,r)
    end 
    close(f)
end

N = 1000_000
tic();writeStuff(N);toc()

writingSpeed.py

import sys 

def writeStuff(n):

    with open('data.txt', 'w') as file:
        for i in xrange(n):
            r = "12"
            print >> file, r

N = 1000000
writeStuff(N)

ok, thanks