Newbie Question: Can't multiply sequence by non-int of type 'str'

Robert Kern robert.kern at
Sun Feb 1 01:25:27 CET 2009

On 2009-01-31 18:19, Paulo Repreza wrote:
> Hi,
> I'm just learning the very basics of python and I ran into this problem
> in version 3.0/3000:
>  >>>x = input("x: ")
> x: 36
>  >>> y = input("y: ")
> y: 42
>  >>> print (x*y)
> Traceback (most recent call last):
> File "<pyshell#3>", line 1, in <module>
> print (x*y)
> TypeError: can't multiply sequence by non-int of type 'str'
> But when I run the same code with Python 2.6.1 it does prints the result.

In Python 3.0, the 2.x input() function, which evaluates the string, was 
removed, and the 2.x raw_input() function, which just returns the string that 
was entered, was renamed to input().

> Is there any special function that I should add in order to work
> properly under Python 3.0?

x = int(input('x: '))
y = int(input('y: '))

Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
  that is made terrible by our own mad attempt to interpret it as though it had
  an underlying truth."
   -- Umberto Eco

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