Problem running a Python program, error: Name 's' is not defined [duplicate]

Answer 1

When you enter data for input() in Python 2, you're entering a Python expression. Whatever you're typing

1. Looks like an expression -- not a literal.

2. Has an S in it (hence the undefined variable.)

Either

• put your strings in quotes or

• stop using input() and use raw_input()

• stop using Python 2.6.

It's not clear what "I have Python 3 installed, but the program is being interpreted by Python 2.6." means. If it's installed, why isn't it being used? What's wrong with your PATH?

Answer 2

If you want to run this in Python 2, you will have to replace the calls to input() with raw_input().

Answer 3

Simple fix. Change your input to raw_input and off you go. For example:

myName = raw_input("Hello! What's your name kid? ")

Check out the Python documentation for more details, but you want to avoid using input as it's attempting to eval() what is returned;

Warning

This function is not safe from user errors! It expects a valid Python expression as input; if the input is not syntactically valid, a SyntaxError will be raised. Other exceptions may be raised if there is an error during evaluation. (On the other hand, sometimes this is exactly what you need when writing a quick script for expert use.)