[Tutor] Running python from windows command prompt

[Arijit Ukil]

Thanks for the help. Now I have modifed the code as:

import sys

def main(argv):

    data = int(sys.argv[1])
 
    avg = average (data)
 
    print "Average:", avg

def average(num_list):
    return sum(num_list)/len(num_list)

if __name__ == "__main__":
   main(sys.argv[1:])

When running in command line I am getting these errors:
In case 1. data = sys.argv[1]
In case 2, data = float(sys.argv[1])
In case 3, data = int (sys.argv[1])





Regards,
Arijit Ukil
Tata Consultancy Services
Mailto: arijit.ukil at tcs.com
Website: http://www.tcs.com
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From:
Alan Gauld <alan.gauld at btinternet.com>
To:
tutor at python.org
Date:
04/10/2013 10:58 PM
Subject:
Re: [Tutor] Running python from windows command prompt
Sent by:
"Tutor" <tutor-bounces+arijit.ukil=tcs.com at python.org>



On 10/04/13 13:32, Arijit Ukil wrote:
> I like to run a python program "my_python.py" from windows command
> prompt. This program ( a function called testing) takes input as block
> data (say data = [1,2,3,4] and outputs processed single data.
>

Hopefully the code below is not your entire program. If it is it won't 
work. You define 2 functions but never call them.

Also you don't print anything so there is no visible output.
Finally this a code does not read the values from sys.argv.
(See my tutorial topic 'Talking to the user')

As for the error message, others have replied but basically you need
to either change to the folder that your file exists in or specify
the full path at the command prompt.

> import math
>
> def avrg(data):
>     return sum(data)/len(data)
>
> def testing (data):
>     val = avrg(data)
>     out = pow(val,2)
>     return out

HTH
-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/

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