Grant R. Griffin wrote >>> l=[0,1,2,3,4] >>> f=open('e', 'w') >>> f.write(l) Traceback (most recent call last): File "<stdin>", line 1, in ? TypeError: read-only character buffer, list One could, of course, do the below: >>> l = [0,1,2,3,4] >>> f = open('e','w') >>> f.write(''.join(map(str,l))) Yours, Lulu...