2008/9/19 mark <[EMAIL PROTECTED]>: > I need to multiply items in a list and need a list back. Which one of > the four options is best (I thought in Python there was only one way > to do something???)
With the emphasis on "preferably" and "obvious" :) "There should be one-- and preferably only one --obvious way to do it." The modern idiom is the list comprehension, rather than the for-loop. Of those options, I personally prefer using "zip". >>>> [ x * y for x,y in zip(a,b) ] # method 4 > [10, 40, 90, 160] If you have very large arrays, you can also consider (np.array(x) * np.array(y)).tolist() Cheers Stéfan _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
