sheeshmohsin Sharevalue 20130715-071630

Explanation of the code

#!/usr/bin/env python

import urllib2     # the module is imported for opening url
import sys         # sys module is imported for command line arguments

def share(symbol):     # The function is defined for opening and reading the url, and for printing sharevalue
    try:               # Used for handle exception and error may be due to problems like url not opening
        b = urllib2.urlopen('http://download.finance.yahoo.com/d/quotes.csv?s='+symbol+'&f=l1')     # opens the url
        a = float(b.read())                   # Reads the url
        if a == 0.00: # if any wrong symbol is entered then it print the sharevalue zero , which is not right, so removing it by if-else statement
            print "The Nasdaq code entered is wrong"
        else:
            print "The current sharevalue for the given NASDAQ symbol is %f" % (a)
    except:
        print "failed to open the finance.yahoo.com url"

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

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