def iff(precond, val, f):
    return False if not precond(val) else f(val)
starts the web server.
dataset/ETHPy150Open naiquevin/lookupy/lookupy/lookupy.py/iff--crossover with--dataset/ETHPy150Open uwdata/termite-visualizations/web2py/gluon/main.py/HttpServer.__init__