TypeError: 'str' object cannot be interpreted as an integer [duplicate]

Question

I don't understand what the problem is with the code, it is very simple so this is an easy one.

x = input("Give starting number: ") y = input("Give ending number: ")  for i in range(x,y):  print(i) 

It gives me an error

Traceback (most recent call last):   File "C:/Python33/harj4.py", line 6, in <module>     for i in range(x,y): TypeError: 'str' object cannot be interpreted as an integer 

As an example, if x is 3 and y is 14, I want it to print

Give starting number: 4 Give ending number: 13 4 5 6 7 8 9 10 11 12 13 

What is the problem?

Answer 1

A simplest fix would be:

x = input("Give starting number: ") y = input("Give ending number: ")  x = int(x)  # parse string into an integer y = int(y)  # parse string into an integer  for i in range(x,y):     print(i) 

input returns you a string (raw_input in Python 2). int tries to parse it into an integer. This code will throw an exception if the string doesn't contain a valid integer string, so you'd probably want to refine it a bit using try/except statements.

Answer 2

You are getting the error because range() only takes int values as parameters.

Try using int() to convert your inputs.