How can I separate these inputs and still make them a float?

Question

This is the question:

A triangle can be classified based on the lengths of its sides as equilateral, isosceles or scalene. All 3 sides of an equilateral triangle have the same length. An isosceles triangle has two sides that are the same length, and a third side that is a different length. If all of the sides have different lengths then the triangle is scalene. Write a program that reads the lengths of 3 sides of a triangle from the user. Display a message indicating the type of the triangle

And here is my code, which doesn't work:

#this doesn't work for some reason: s1, s2, s3 = float(input('Enter three sides (separated by comma): ').split(','))

if s1 == s2 and s2 == s3:
    print('Equilateral')
elif (s1 == s2 and s2 != s3) or (s1 == s3 and s2 != s3) or (s2 == s3 and s1 != s2):
    print('Isosceles')
else:
    print('Scalene')

What am I missing? Thanks in advance.

Answer 1

That's because split() is a string function. You can't use it to an integer or float. So, it needs to be like this

s1, s2, s3 = input('Enter three sides (separated by comma): ').split(',')

Answer 2

This looks like you are trying to cast a list of strings to a list of floats. This does not work.

I would use something like this:

str1, str2, str3 = input('Enter three sides (separated by comma): ').split(',')
s1 = float(str1)
s2 = float(str2)
s3 = float(str3)

Or a list-comprehension:

s1, s2, s3 = [float(s) for s in input('Enter three sides (separated by comma): ').split(',')]