Invalid Syntax in Python

[bubbles8935716]

So, I'm trying to run my first Python code:

print("Hello, world!")

in Python 3, and I saved it as hello.py. But when I type in:

python3 hello.py

into LXTerminal, I get:

File "hello.py", line 1
Python 3.2.3 (default, Mar 1 2013, 11:53:50)

(BTY, there's an arrow thingy under the 2)

Can anyone tell me what's wrong?

[expandables]

I use nano

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nano hello.py

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print('Hello, world!')

Then do python3 hello.py
and get Hello, world!
BTW you can use single quotes as well.

[rpdom]

It looks like your file may not contain what you think it does.

Can you type in

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cat hello.py

into LXTerminal and post what it shows. You should get something like this

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pi@raspi2 ~ $ cat hello.py
print("Hello, world!")
pi@raspi2 ~ $ 

You are using an old version of python, but that shouldn't cause that problem.

[B.Goode]

Can anyone tell me what's wrong?

My guess is that you clicked on the menu entry for Python3. This will have started the Idle3 IDE. You then typed your code into the resulting Python Shell window and saved it. If you examine your code it probably looks like this:

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pi@RPi2B ~ $ cat hello.py
Python 3.2.3 (default, Mar  1 2013, 11:53:50)
[GCC 4.6.3] on linux2
Type "copyright", "credits" or "license()" for more information.
>>> print("hello!")
hello!
>>>

This will, as you have found, not run correctly when you pass it to the python3 interpreter.

If you want to use Idle3 as the editor for your python scripts, DO NOT type them in the Python Shell window. Use the FILE menu in that screen to OPEN a New Window - initially headed Untitled - and use that window to create and save your script.

[bubbles8935716]

OK, I realize what I did wrong. I kept on forgetting to write code in a NEW window. Thanks for the help!

[expandables]

If you are going to make that mistake forget about using "Idle3 editor" and use something else like "nano"