Executes the passed in list of specs

def process(specs):
    """
    Executes the passed in list of specs
    """
    pout, pin = chain_specs(specs)
    LOG.info("Processing")
    sw = StopWatch().start()
    r = pout.process(pin)
    if r:
        print(r)
    LOG.info("Finished in %s", sw.read())