Error: NameError: name 'Caitlin' is not defined

When posting code to the forum, use Markdown formatting to preserve the appearance.

But even without formatting, it doesn't seem like this code would produce that error. What exactly do you do to run this program?

UPDATE: So it sounds like you needed to update from version 2? That's good, because versions 2 and 3 (which is used in the courses) are definitely not compatible for several reasons.

As Steven said, try to get familiar with Markdown formatting. I ran the code you provided and it ran just fine. Make sure you have proper indenting inside the if statement, and be aware that if statements are case sensitive. If you are inputing "caitlin" with a lowercase c, the if statement will mismatch and not run.

first_name = input("What is your first name? ")
print("Hello,", first_name)
if first_name == "Caitlin":
    print(first_name, "is learning Python") 
    print("Have a great day {}!".format(first_name))

Hi guys, thanks for your replies - I may be running Python 2 which could be an issue? Upon reading maybe Python 2 uses 'raw_input' instead of 'input'?

Hi Spencer,

I was running it locally, and updating Python (not straightforward on a mac)

It also fixed the 'Try Except' error issue, which was a relief!

Hi Caitlin,

I had the same issue, I am using VS Code and not the built-in workspace tool and to solve that issue I had to set the default environment to Python3 by pasting in this code at the top of the script:

#!/usr/bin/env python3

#!/usr/bin/env python3

name = input("What is your name: ")
if name == "armin":
    print("Hello {}".format(name))
else:
    print("Hello unknown person")

AFAIK, raw_input() was renamed to just input() in Python3

Use this code instead:

Instead of using input use raw_input

first_name = raw_input ("Enter your name: ") print("Hello,", first_name)

if first_name == "Pedro": print(first_name + " " + "is learning python") print("Have a great day {}!".format(first_name))

https://stackoverflow.com/questions/21122540/input-error-nameerror-name-is-not-defined