def vtl_exists_in_folder(path):
    for dirpath, dirname,filenames in os.walk(path):
        for f in filenames:
            ext = os.path.splitext(f)[1]
            if ext == ".vtl":
                return True
    return False

###############################################################################
takes no arguments
dataset/ETHPy150Open VisTrails/VisTrails/extensions/latex/includevistrail.py/vtl_exists_in_folder--crossover with--dataset/ETHPy150Open ProgVal/Limnoria/plugins/Unix/plugin.py/Unix.fortune