[Tutor] Running files from command prompt
d at davea.name
Fri Jul 29 04:11:39 CEST 2011
On 07/28/2011 09:58 PM, Alexander Quest wrote:
> I downloaded the google's python exercise files from their website (
> unzipped them, and placed them in C.
> I then added the following to the PATH variable under system settings so
> that I could type "python" in command prompt and have Windows start the
> interpreter: C:\Python31;C:\Python31\Tools\Scripts
> When I type in "python" in the command prompt, the interpreter opens, but
> when I try to open one of the programs from the Google exercise files
> (hello.py), I get the following error:
> Traceback<most recent call last>:
> File "<stdin>", line 1, in<module>
> NameError: name 'hello' is not defined
When you're running the python interpreter, you can't just type the name
of your script. You need to import it
However, first it needs to be in the python's module search path.
Easiest way is to make
it your current directory.
So, from a command prompt:
XXXX starting Python version ....
> Or, if I just type in "python hello.py" first in the command prompt (as
> opposed to typing in python, hitting enter, and THEN typing in hello.py, as
> above), I get the following error:
> python: can't open file 'hello.py': [Errno 2] No such file or directory.
> So I guess my question is how do I run .py files from the command prompt now
> that I seem to have gotten Windows to recognize and open the interpreter
> when I type in "python"? Thanks for any help.
Similarly, before running python, change to the directory you want the
script to run in.
Normally, you'd do:
> P.S. Just as an aside, when I open up the command prompt, the initial
> directory is C:\Users\Alexander, but my google exercises are in
> C:\google-python-exercises and python itself is in C:\Python31. I don't know
> if this makes a difference or not.
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