On Mon, 17 Dec 2007 06:20:23 -0800, vimal wrote: > i have a list of numbers > > say a = [1,-1,3,-2,4,-6] > > how should i check for negative values in the list In [6]: a = [1, -1, 3, -2, 4, -6] In [7]: any(n < 0 for n in a) Out[7]: True Ciao, Marc 'BlackJack' Rintsch