chapter3 of head first programming (complete procedure and program to send message to twitter)

• First of all go to TWITTER and log in to your account.

• Follow the below pictures to create a new app. 

Note: Instructions are written inside the pictures.

• Now you need to go to TWITTER DEVELOPER'S PAGE and follow the instructions below.

Now we are all done with Twitter application authentication process !!
So long. Take some tea or coffee break !!


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INSTALLATION INSTRUCTIONS AND LINKS FOR pip AND twitter version 1.16.0 OR LOWER .
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NOTE: YOU NEED TO USE COMMAND PROMPT (ON WINDOWS) AND TERMINAL (ON LINUX AND MAC) WITH ADMIN PRIVILEGE FOR INSTALLING PIP AND TWITTER API.

For Linux (yum and apt based):

1. yum install python-pip python3-pip
                  or 
    sudo apt-get install python-pip python3-pip

For Windows click me

For Mac OS click me

                                        OR

FOLLOW THIS PIP INSTALLATION GUIDE (CLICK ME)

2. pip install twitter
3. pip3 install twitter

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Script for python-2.7.x (tested using python-2.7.8) :
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import twitter as t import urllib2 as ur import time CONSUMER_KEY = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' # Same as API key CONSUMER_SECRET = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' # Same as API secret ACCESS_TOKEN_KEY= 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ACCESS_TOKEN_SECRET= 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ''' This function updates the status of my twitter account requires twitter python module ''' def tweet(status_msg): if len(status_msg) > 140 : raise Exception ('Status message too long !!!') else: authkey = t.Twitter(auth=t.OAuth(ACCESS_TOKEN_KEY, ACCESS_TOKEN_SECRET, CONSUMER_KEY, CONSUMER_SECRET)) result = authkey.statuses.update(status=status_msg) return result ''' This function get the coffee price (both below a desired price and in emergency; the current price) ''' def get_price(page): text = page.read().decode("utf8") ss_pos = text.find('>$') soss = ss_pos + 2 eoss = soss + 4 return float(text[soss:eoss]) ''' main program requires urllib.request requires time library also. ''' print ("Welcome to Starbuzz Coffee price checking program") choice = raw_input ("Do You want to know the coffee price immediately ?? (y/n) : ") if choice == "y": page = ur.urlopen("http://beans.itcarlow.ie/prices.html") price = get_price(page) status_msg = "@starbuzzceo\nCurrent price of coffee = $" + str(price) res = tweet(status_msg) else : price =99.99 while price > 4.74 : time.sleep(10) page = ur.urlopen("http://beans.itcarlow.ie/prices-loyalty.html") price = get_price(page) status_msg = "@starbuzzceo\nCurrent price of coffee is $" + str(price) + "; BUY !!!" res = tweet(status_msg) if res != None: print ("tweeted coffee price successfully to Starbuzz CEO") else: print ("problem !!")

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Script for python-3.x (tested using python-3.4.1) :
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import twitter as t import urllib.request as ur import time CONSUMER_KEY = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' # Same as API key CONSUMER_SECRET = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' # Same as API secret ACCESS_TOKEN_KEY= 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ACCESS_TOKEN_SECRET= 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ''' This function updates the status of my twitter account requires twitter python module ''' def tweet(status_msg): if len(status_msg) > 140 : raise Exception ('Status message too long !!!') else: authkey = t.Twitter(auth=t.OAuth(ACCESS_TOKEN_KEY, ACCESS_TOKEN_SECRET, CONSUMER_KEY, CONSUMER_SECRET)) result = authkey.statuses.update(status=status_msg) return result ''' This function get the coffee price (both below a desired price and in emergency; the current price) ''' def get_price(page): text = page.read().decode("utf8") ss_pos = text.find('>$') soss = ss_pos + 2 eoss = soss + 4 return float(text[soss:eoss]) ''' main program requires urllib.request requires time library also. ''' print ("Welcome to Starbuzz Coffee price checking program") choice = input ("Do You want to know the coffee price immediately ?? (y/n) : ") if choice == "y": page = ur.urlopen("http://beans.itcarlow.ie/prices.html") price = get_price(page) status_msg = "@starbuzzceo\nCurrent price of coffee = $" + str(price) res = tweet(status_msg) else : price =99.99 while price > 4.74 : time.sleep(10) page = ur.urlopen("http://beans.itcarlow.ie/prices-loyalty.html") price = get_price(page) status_msg = "@starbuzzceo\nCurrent price of coffee is $" + str(price) + "; BUY !!!" res = tweet(status_msg) if res != None: print ("tweeted coffee price successfully to Starbuzz CEO") else: print ("problem !!")

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SCRIPTS FOR PYTHON 2.7.X USING  tweepy
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Try it yourself for Python 3.X.

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import tweepy import urllib2 import time CONSUMER_KEY = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'# Same as API key CONSUMER_SECRET = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'# Same as API secret ACCESS_TOKEN_KEY= 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ACCESS_TOKEN_SECRET= 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ''' This below function updates the status of my twitter account requires tweepy ''' def tweet(status): if len(status) > 140 : raise Exception ('Status message too long !!!') auth = tweepy.OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET) auth.set_access_token(ACCESS_TOKEN_KEY, ACCESS_TOKEN_SECRET) api = tweepy.API(auth) result = api.update_status(status) return result # I do not feel any need of this though. #it is always good to make a function return something ''' This below function get the coffee price (both below a desired price and in emergency; the current price) ''' def get_price(page): text = page.read().decode("utf8") ss_pos = text.find('>$') soss = ss_pos + 2 eoss = soss + 4 return float(text[soss:eoss]) ''' main program requires urllib2 (incase of python 2.7.x series) requires time library also. ''' print ("Welcome to Starbuzz Coffee price checking program") choice = raw_input ("Do You want to know the coffee price immediately ?? (y/n) : ") if choice == "y": page_emergency = urllib2.urlopen("http://beans.itcarlow.ie/prices.html") price = get_price(page_emergency) res = tweet("@starbuzzceo\nCurrent price of coffee = $" + str(price)) else : price =99.99 while price > 4.74 : time.sleep(10) page_optimal = urllib2.urlopen("http://beans.itcarlow.ie/prices-loyalty.html") price = get_price(page_optimal) res = tweet("@starbuzzceo\nCurrent price of coffee is $" + str(price) + "; BUY !!!") if res != None: print ("tweeted coffee price successfully to starbuzz ceo") else: print ("problem !!")

suggestions and comments are invited.