On Aug 17, 9:22 pm, Yingjie Lin <Yingjie.... at mssm.edu> wrote: > I found zip() but it only gives [('a', '1'), ('b', '2')], not exactly what I am looking for. Yet, if you feed the zip into a list comprehension you get what you want: li3 = [''.join(l) for l in zip(li1,li2)] Sigmund