List iteration

[deanhystad]

There are multiple ways to solve this problem. It is a bit of a cheat, but a cheat that Python programs should know about.

Output:
>>> string = "3,9,13,4,42"
>>> values = eval(string)
>>> print(values)
(3, 9, 13, 4, 42)
>>> help(eval)
Help on built-in function eval in module builtins:

eval(source, globals=None, locals=None, /)
    Evaluate the given source in the context of globals and locals.
    
    The source may be a string representing a Python expression
    or a code object as returned by compile().
    The globals must be a dictionary and locals can be any mapping,
    defaulting to the current globals and locals.
    If only globals is given, locals defaults to it.

I didn't know if this would work before I tried it. I assumed that running this program would give me a syntax error. But it works too.

values = 1, 2, 3, 4, 5
print(values)

Output:
(1, 2, 3, 4, 5)

Once you have a list of numbers it should be easy to write a for loop or list comprehension to square the values.