print(str.split("a,b,c", ","))


print("a,b,c".split(","))


print("this is my string".split())


s = " this   is  my string "
print(s.split())
print(s.split(" "))
print(s.split(maxsplit=1))


for i, numeral in enumerate("I II III IV V".split(), start=1):
    print(i, numeral)


roman_numerals = "I II III IV V".split()
print(roman_numerals)

for numeral in roman_numerals:
    print(numeral)