Write a file sharevalue.py such that when we run the command ./sharevalue.py <NASDAQ_symbol_of_company> will give the share value of the company.
In this code, we import urllib2 package.The urllib2 module defines functions and classes which help in opening URLs (mostly HTTP) in a complex world — basic and digest authentication, redirections, cookies and more.
share_value Function
Nasdaq symbol of the company is passed to this function which inserts it in the url of yahoo sharevalue finder. urllib2.open(url) function is used to open the url for finding the sharevalue. print_sharevalue() function is then called from this function.
print_sharevalue Function This function as the name suggests reads the sharevalue file and prints the sharevalue after checking if the NASDAQ symbol is valid. The is done by checking if the the sharevalue read is equal to 0.0 . If sharevalue is zero , it indicates that the NASDAQ symbol is invalid, hence prints "invalid nasdaq symbol" . If nasdaq value is valid it prints the corresponding sharevalue.
link to the code link