def checkout(svnConf):
    global user, password
    user=svnConf['user']
    password=svnConf['password']
    client = pysvn.Client()
    client.callback_get_login = svn_login
    checkoutDir=tempfile.mkdtemp()
    client.checkout(svnConf['url'], checkoutDir)
    revision=client.info(checkoutDir).revision.number
    return checkoutDir,revision