shantanusarkar Share Value 20130715-120508

Objective

Write a python script to print the latest share value of a company whose NASDAQ symbol would be given as command line argument.

Program

#!/usr/bin/env python

import urllib2
import sys

def share(symbol):
    try:
        x = urllib2.urlopen('http://download.finance.yahoo.com/d/quotes.csv?s='+symbol+'&f=l1')
        value = float(x.read())
        if value == 0.00:
            print "NASDAQ code invalid"
        else:
            print "The current sharevalue for %s is %f" % (symbol,value)
    except:
        print "failed to open the finance.yahoo.com url. Check your internet connection."

if __name__ == '__main__':
    if len(sys.argv) != 2:
        print "Invalid Entry. Enter a valid NASDAQ symbol"
        sys.exit(1)
    else:
        share(sys.argv[1])
        sys.exit(1)

To go to program click here.

Run

chmod +x sharevalue.py
./sharevalue.py <NASDAQ symbol>

or

python sharevalue.py <NASDAQ symbol>

Output

$ python sharevalue.py GOOG

The current sharevalue for GOOG is 923.000000