View Full Version : help! - Python prog works through GEDIT but not through Ubuntu Terminal..

October 12th, 2010, 10:48 AM
Dear Ubuntu Forums,

I am new to Python (and Linux) and have been studying from the book "Beginning Python - Using Python 2.6 and Python 3.1)

One of the codes which I have written is the following:

while True:
how_old=input("Enter your age: ")
if how_old=="No":
print ("Dont be ashamed of your age!")
print ("Your age is: ")
print (age)
print ("That is old!")

When I write and save this as .py through GEDIT everything runs perfectly. However, when I write this in the Ubuntu Python terminal and press enter, the program does not run completely. It prompts me for my age, and when I type "No" it gives me the following error:

Traceback (most recent call last):
File "<stdin>", line 2, in <module>
File "<string>", line 1, in <module>
NameError: name 'No' is not defined

Why am I getting this error when I run through the Terminal and not when I save as .py through GEDIT and open with the Python GUI??

Thanks in advance.

October 12th, 2010, 10:54 AM
I couldnt get you clearly..when you save your code with <filename>.py
and run with terminal it should work. I tried to run your code, its working

I guess you are missing this line at the top of your file

#! /usr/bin/env python

Try using it..

October 12th, 2010, 11:02 AM
the problem is probably that when you type

python <filename>

in the terminal, the default python is 2.6

the code you're writing is for python 3.x:

how_old=input("Enter your age: ")

so either use python 3.x with the code, or modify the code to be compatible with python 2.x:

how_old=raw_input("Enter your age: ")