On Oct 15, 4:02 am, Abandoned <[EMAIL PROTECTED]> wrote: > Hi.. > I have a list as a=[1, 2, 3 .... ] (4 million elements) > and > b=",".join(a) > than > TypeError: sequence item 0: expected string, int found > I want to change list to a=['1','2','3'] but i don't want to use FOR > because my list very very big.
What is your worry: memory or time? The result string will be very very very big. What will you do with the result string -- write it to a file? If so, look at the cPickle module. -- http://mail.python.org/mailman/listinfo/python-list