valueError too many values to unpack

[micseydel]

What version of Python are you using? What are you providing when input() asks for two numbers?

It looks like you're using Python 3, and I'll imagine an input like so

Output:
>>> a, b = input("> ")
> 1 2
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
ValueError: too many values to unpack (expected 2)

Recall that input() gives you a string, so the way the code works is much like this

Output:
>>> a, b = "1 2"
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
ValueError: too many values to unpack (expected 2)

Python isn't trying to interpret the contents of the string as integers here.

Output:
>>> a, b = "12"
>>> a
'1'
>>> b
'2'

What you could do is get the string from input(), use str.split (based on whether you want to use whitespace, commas, or whatever) and then use a comprehension on that split string to turn the contents into ints, or floats.