python create list of list from comma separated string code example

Example 1: convert list to string separated by comma python

converted_list = [str(element) for element in a_list]

Example 2: list from comma separated string python

>>> my_string = 'A,B,C,D,E'
>>> my_list = my_string.split(",")
>>> print my_list
['A', 'B', 'C', 'D', 'E']