import time




def onceasecond(func):
    #global lastt
    lastt=0
    def fun(*args,**kwargs):
        #global lastt
        t=time.time()
        if t-fun.lastt>1:
            fun.lastt=t
            func(*args,**kwargs)
    fun.lastt=lastt
    return fun






if __name__=="__main__":
    @onceasecond
    def printi(i):
        print(i)
    i=0
    while True:
        i+=1
        printi(i)