ThyArmageddon MyShellv1 20130718-155029

MyShellv1

Even though the name of the project is MyShellv1, the actual version of it is 0.3. Anyway, this script will use sharevalue.py written previously, which was edited to be used as module as well, which uses, by itself, YahooAPI.py.

Code

"""
Yahoo API Module
================

YahooFinance Class
------------------
This class will save the ticker in a correct link format
and will output the correct value when value is called

"""

import requests


class YFinance(object):

    """
    The YahooAPI has a correct link
    and the value returned from Yahoo Finance
    """

    def __init__(self):
        """
        The default link is None
        """
        self._link = None

    @property
    def link(self):
        """
        This will return the link when needed
        to access the website and get the value
        """
        return self._link

    @property
    def value(self):
        """
        We try to connect to the link
        if everything goes well, we get the value
        we check if the value is not 0 and return it
        if we can't connect we will return -1
        """
        try:
            fobj = requests.get(self._link)
            data = fobj.text
            value = float(data)
            fobj.close()
            if value == 0.0:
                return
            return value

        except IOError:
            return -1

    @link.setter
    def link(self, ticker):
        """
        The link recieves a ticker and saves it as a link
        The link will be used later to get the information
        from the web page.
        """
        link = "http://download.finance.yahoo.com/d/quotes.csv?s=%s&f=l1" \
            % ticker
        self._link = link

#!/usr/bin/env python
"""
This python script will use the API modules
availables to check the value of a specific
ticker online and return it
"""

import sys
from YahooAPI import YFinance

def Stock(ticker=''):
    if not ticker:
        print "No Ticker"
        sys.exit(1)

    else:
        """
        We create a class from the Yahoo API
        We set the ticker argv[1]
        We ask for the value of the market
        """
        finance = YFinance()
        finance.link = ticker
        value = finance.value

        """
        We test if value is set first
        if it is not we exit because the ticker is wrong
        We, then, test if value is set to -1
        if it is we exit because we couldn't connect
        """
        if not value:
            print """
            You submitted a ticker that doesn't exist
            Please try a different ticker than %s
            """ % ticker
            sys.exit(1)
        if value == -1:
            print """
            We were able to connect to the website
            The website might be down
            Please check your connection and try again.
            """
            sys.exit(1)

        else:
            return value


if __name__ == '__main__':
    """
    We start by testing the number of arguments
    and exit if the number of arguments is less
    than 2
    """

    if len(sys.argv) != 2:
        print """
        Incorrect argument length

        Usage:
        sharevalue.py <ticker>
        """
        sys.exit(1)

    """
    We create a class from the Yahoo API
    We set the ticker argv[1]
    We ask for the value of the market
    """
    finance = YFinance()
    finance.link = sys.argv[1]
    value = finance.value

    """
    We test if value is set first
    if it is not we exit because the ticker is wrong
    We, then, test if value is set to -1
    if it is we exit because we couldn't connect
    """
    if not value:
        print """
        You submitted a ticker that doesn't exist
        Please try a different ticker than %s
        """ % (sys.argv[1])
        sys.exit(1)
    if value == -1:
        print """
        We were able to connect to the website
        The website might be down
        Please check your connection and try again.
        """
        sys.exit(1)

    """
    If everything goes well, we print the value
    """
    print """
        The current value of %s is %.2f
    """ % (sys.argv[1], value)

#!/usr/bin/env python
from cmd2 import Cmd
from getpass import getuser
from sharevalue import Stock

__version__ = '0.3'


class Application(Cmd):
    """
    The main Application class

   """

    def __init__(self):
        Cmd.__init__(self)

    def do_hello(self, line):
        print "Hello:", line

    def do_sayit(self, line):
        print "Python Rocks!"

    def do_greet(self, line):
        """
        Greet the user by printing
        the username.
        """
        print "Hello %s" % getuser()

    def do_stock(self, line):
        """
        Call Stock from sharevalue to get the stock market
        value of a ticker.
        """
        print Stock(line)


if __name__ == '__main__':
    app = Application()
    app.cmdloop()