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)

The close() at the end of the with block is not needed, and indeed not idiomatic, as it's implied by leaving the context of the with block.

ok, thanks