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    Notes on slide 1

    EuroPython talk “Twittering with Python” by @onyame http://tr.im/schreiber #europython

    Follow this presentation @ python_demo

    Final version of this presentation is available on @slideshare http://tr.im/ep09twt

    What is Twitter? Summary from http://en.wikipedia.org/wiki/Twitter

    History of My Blog http://tr.im/pXOi by Hugh MacLeod @gapingvoid

    Many, many people are on Twitter, e.g. see http://tr.im/pXBr by @ timesonline

    Many many people are on Twitter! For examples, see http://tr.im/pXBr

    Guido „Creator of Python“ van Rossum on Twitter: @gvanrossum

    German Aerospace Center (DLR) on Twitter: @DLR_de

    The Open Source CMS Plone on Twitter: @plone

    Python Package Index on Twitter: @pypi #python

    BBC News on Twitter: @bbcbreaking (btw. I’m so sad about #michaeljackson)

    EuroPython on Twitter: @europython

    Supercomputing conference SC09 on Twitter: @SuperComputing

    http://twitter.com uses Ruby on Rails http://rubyonrails.org/

    I

    Search for hash tags, such as http://search.twitter.com/search?q=%23europython

    There are many Twitter application, see http://twitter.pbwiki.com/Apps

    Coming to the Twitter Application Programming Interface…

    Twitter has an REST-based API: http://apiwiki.twitter.com

    Twitter API methods include Status, Account, User, Direct Message, and Friendship …

    Twitter API methods include Favorite, Help, Notification, and Block

    Twitter supports Basic HTTP authentication and OAuth http://oauth.net/

    There are Twitter libraries for many languages http://apiwiki.twitter.com/Libraries … of course, we are interested in #python ;-)

    At least 4 Python Twitter libraries exist: http://tr.im/pytwitter http://tr.im/twyt http://tr.im/twittytwister http://tr.im/pytwittertools

    Library #1: python-twitter http://tr.im/pytwitter by Dewitt Clinton @dewitt

    API and Data model of python-twitter http://tr.im/pytwitter

    Library #2: Twyt http://tr.im/twyt by Andrew Price @andyprice

    API and Data model of Twyt http://tr.im/twyt

    Library #3: twitty-twister http://tr.im/twittytwister by Dustin Sallings @ dlsspy

    API and data model of twitty-twister http://tr.im/twittytwister

    Library #4: Python Twitter Tools (PTT) http://tr.im/pytwittertools by Mike Verdone @verdonethestone

    API and data model of Python Twitter Tools http://tr.im/pytwittertools

    Some simple examples for the Python Twitter Tools

    Direct comparison of all Python Twitter Libraries

    Now showing some examples and demos… #twitter #python

    Demo: Show recent updates of user @DLR_de

    Demo: Post an update… very simple ;-)

    Demo: Add the Python User Group Cologne @pycologne as a friend #köln

    The tail2twitter is an extension of http://code.activestate.com/recipes/157035

    tail2twitter can be used to monitor server log files.

    Demo: Notification from SVNChecker (see presentation from #europython 2008 http://tr.im/q38T)

    It’s easy to develop Twitter application on Smart phones with PyS60 http://tr.im/q4wm

    Demo: Slide change notification from Microsoft PowerPoint. If you read this message, the demo is successful!

    In Python, it’s very easy to catch the slide change event http://msdn.microsoft.com/en-us/library/bb231077.aspx

    For details see Roy Han’s #pycon tutorial Automating Windows Applications with win32com http://tr.im/q43o

    Demo: Twitter notification from MoinMoin Wiki http://moinmo.in/

    Thank You! For further contact: follow @onyame, visit http://tr.im/schreiber, or send E-Mail to python@dlr.de

    3 Favorites & 1 Event

    Twittering with Python - Presentation Transcript

    1. Twittering with Python Python libraries for the Twitter API: Overview and applications EuroPython 2009 (June 30th 2009, Birmingham) Andreas Schreiber <Andreas.Schreiber@dlr.de> German Aerospace Center (DLR), Cologne, Germany http://www.dlr.de/sc | http://tr.im/schreiber Folie 1 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    2. Follow this presentation… Live! PowerPoint to Twitter! twitter.com/python_demo Folie 2 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    3. Final Version of this Slides is available on SlideShare http://tr.im/ep09twt Folie 3 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    4. What is Twitter? Micro-Blogging Service Users can send text messages Users can receive text messages of others Text messages can have up to 140 characters The text messages are called „Updates“ or „Tweets“ Social Network One can subscribe to other users („Following“) Subscriber of own updates are „Follower“ On the Twitter web site one can enter updates and … See updates of all Friends Users can control visibility http://en.wikipedia.org/wiki/Twitter Folie 4 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    5. Folie 5 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    6. Who twitters? Persons (private persons, „Celebrities“, politicians, …) Guido van Rossum, Ian Foster, Al Gore, Barack Obama, William Shatner Research centers & universities DLR, ESA, NASA, Fraunhofer, DHBW Mannheim, FH Köln, Cardiff Uni. Companies (publishers, IT companies, Dienstleister, …) O‘Reilly, Heise, Sun Microsystems, Google, XING, Starbucks, Bahn Software projects & products Digsby, Dropbox, Plone, Jython, SharePoint, SlideShare, Camtasia Media (Newspapers, TV stations, TV shows, …) Bild, The Times, Focus, ZEIT, BBC, CNN, Pro7, TV Total Conferences and organizations EuroPython, PyCon, Supercomputing, EclipseCon, Greenpeace Folie 6 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    7. Folie 7 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    8. Guido van Rossum Folie 8 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    9. DLR_de Folie 9 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    10. Plone Folie 10 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    11. Python Package Index Folie 11 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    12. BBC Breaking News Folie 12 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    13. EuroPython Folie 13 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    14. Super Computing Folie 14 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    15. Web Sites and Technologies http://twitter.com Web application developed with Ruby on Rails Message Queue Server Kestrel (fka. Starling) developed in Scala Available under Apache 2.0 License http://github.com/robey/kestrel/tree/master http://search.twitter.com Originally develop by Summize Real time search over Twitter-XMPP-Stream Requests with Atom and JSON: http://search.twitter.com/search.atom?q=<query> http://search.twitter.com/search.json?q=<query> Folie 15 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    16. Twitter Basics (1) Tweet A Post (message, update) at Twitter Max. 140 Characters (incl. white space), only text Timeline History of the latest updates „Public Timeline“: Updates of all users („Everyone“) Folie 16 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    17. Twitter Basics (2) Follow Selection of „Friends“ for your own timeline („Stream“) „Followers“ are following your own updates Personal Page You own Timeline Status information Folie 17 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    18. Twitter Basics (3) Replies Response to an other user To reply, add „@username“ to the message Replies can be from your „Friends“ or any other user Direct Messages Private messages Can be sent to your “Follower” only, not to “Friends” Retweets „Forward“ of interesting updates to own friends Usually, Retweets starts with a „RT“ Folie 18 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    19. Hash tags Hash tags in Twitter messages Begins with a hash „#“ Often used for events, cities, countries, … Examples #birmingham #europython Folie 19 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    20. Twitter Applications Web applications Native Clients Windows, Mac OS X, Linux iPod/iPhone Smartphones Integration in existing applications Instant Messenger Social Networking Services See list at http://twitter.pbwiki.com/Apps Folie 20 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    21. Twitter API Folie 21 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    22. Twitter API REST-based API HTTP-Requests Data formats: XML, JSON, RSS, Atom Authentication with OAuth or HTTP Basic Authentication Error messages are provided (e.g., in XML): <?xml version="1.0" encoding="UTF-8"?> <hash> <request>/direct_messages/destroy/456.xml</request> <error>No direct message with that ID found.</error> </hash> Limitation: Max. 100 Requests in 60 minutes per client Based on: IP (unauthorized) or User ID (authorized) Documentation: http://apiwiki.twitter.com Folie 22 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    23. API Methods (1) Status Methods User Methods public_timeline friends friends_timeline followers user_timeline featured show show update Direct Message Methods replies direct_messages destroy sent Account Methods new verify_credentials destroy end_session Friendship Methods: archive create update_location destroy update_delivery_device exists Folie 23 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    24. API Methods (2) Favorite Methods Notification Methods favorites follow create leave destroy Block Methods Help Methods create test destroy downtime_schedule Folie 24 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    25. Authentication Two Techniques to Authenticate with the REST API Basic Auth Sends user credentials in the header of the HTTP request Easy to use, but insecure and difficult to track OAuth Token-passing mechanism Allows users to control which application have access to their data without giving away their passwords Specification: http://oauth.net/ Registration of clients: http://twitter.com/oauth_clients http://oauth.net/core/1.0/ Folie 25 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    26. Twitter API: Getting Started (1) Public Timeline Getting the Public Timeline (last 20 entries) As RSS curl http://twitter.com/statuses/public_timeline.rss As JSON curl http://twitter.com/statuses/public_timeline.json As XML curl http://twitter.com/statuses/public_timeline.xml Folie 26 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    27. Twitter API: Getting Started (2) Timeline of your own „Friends“ curl -u python_demo:*** http://twitter.com/statuses/friends_timeline.xml Folie 27 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    28. Twitter API: Getting Started (3) Posting of „Updates“ curl -u python_demo:**** -d status="This message was sent using cURL" http://twitter.com/statuses/update.json Folie 28 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    29. Libraries List of libraries: http://apiwiki.twitter.com/Libraries ActionScript / Flash C++ C#/.NET Java Objective-C/Cocoa Perl PHP PL/SQL Python Ruby Scala Folie 29 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    30. Twitter Libraries in Python Four Implementations python-twitter by DeWitt Clinton. This library provides a pure Python interface for the Twitter API. python-twyt by Andrew Price. BSD licensed Twitter API interface library and command line client. twitty-twister by Dustin Sallings. A Twisted interface to Twitter. Python Twitter Tools (PTT) by Mike Verdone. A Twitter API, command-line tool, and IRC bot. Folie 30 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    31. python-twitter Pure Python Interface for the Twitter API Project information Project site: http://code.google.com/p/python-twitter Author: DeWitt Clinton (Google; http://unto.net) Apache License 2.0 Provided functionality Supported Methods: Status, User, Direct message Authentication: Basic Auth Provides a Python wrapper around the Twitter API and data model Requirements simplejson (http://cheeseshop.python.org/pypi/simplejson) Folie 31 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    32. python-twitter API and Data Model API Class twitter.Api import twitter # without authentication api = twitter.Api() # with authentication api = twitter.Api(username=‘username', password=‘password') Data model Three model classes: twitter.Status, twitter.User, and twitter.DirectMessage API method return instances of these classes statuses = api.GetPublicTimeline() users = api.GetFriends() Folie 32 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    33. Twyt A Twitter API interface for Python Project information Project site: http://andrewprice.me.uk/projects/twyt Author: Andrew Price BSD License Provided functionality Supported Methods: Status, User, Direct Message, Friendship, Social Graph, Block Authentication: Basic Auth, OAuth Requirements simplejson (http://cheeseshop.python.org/pypi/simplejson) Folie 33 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    34. Twyt API and Data Model API Class twyt.twitter.Twitter, methods return JSON from twyt import twitter, data api = twitter.Twitter() # authenticate api.set_auth(‘username', ‘password') Data model Model classes in module twyt.data: User, Status, DirectMsg, StatusList, DirectList, RateLimit Provides easy access to JSON data timeline = api.status_public_timeline() statuses = data.StatusList(timeline) print statuses[0].user.name, statuses[0].text Folie 34 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    35. twitty-twister A Twisted interface to Twitter Project information Project site: http://github.com/dustin/twitty-twister/tree/master Author: Dustin Sallings License: ? Provided functionality Supported methods: Status, User, Direct message, Friendship Authentication: Basic Auth, OAuth Requirements Twisted (http://twistedmatrix.com) Folie 35 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    36. twitty-twister API and Data Model API Class twitter.Twitter, with Basic or OAuth authentication from twisted.internet import reactor, protocol, defer, task import twitter api = twitter.Twitter(‘username', ‘password') Data model Module txml parses XML and provides access classes: Author, Entry, Status, User, DirectMessage Callback functions can be used. Folie 36 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    37. twitty-twister Example Get public timeline def gotEntry(msg): print “Message from %s: %s" % (msg.author.name, msg.title) api.public_timeline(gotEntry).addBoth(lambda x: reactor.stop()) reactor.run() Update („post message“) def callback(x): print "Posted id", x def errorback(e): print e api.update(‘text').addCallback(cb).addErrback(eb). addBoth(lambda x: reactor.stop()) reactor.run() Folie 37 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    38. Python Twitter Tools (PTT) Twitter API, command-line tool, and IRC bot Project information Project site: http://mike.verdone.ca/twitter Author: Mike Verdone MIT License Provided functionality Supported methods: status, user, direct message Authentication: Basic Auth IRC bot that can announce Twitter updates to an IRC channel Requirements irclib (http://python-irclib.sourceforge.net) simplejson (http://cheeseshop.python.org/pypi/simplejson) Folie 38 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    39. Python Twitter Tools (PTT) API and Data Model API Class twitter.api.Twitter, with Basic Auth import twitter.api # without authentication api = twitter.api.Twitter() # with authentication api = twitter.api.Twitter(‘username', ‘password') Data model Class TwitterCall generates dynamics calls and returns decoded JSON (as Python lists, dicts, ints, strings) Data in XML format api = twitter.api.Twitter(format=“XML”) Folie 39 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    40. Python Twitter Tools (PTT) Example Get public timeline timeline = api.statuses.public_timeline() print timeline[0][‘user’][‘screen_name’] print timeline[0][‘text’] Get friends timeline # two types of invocation possible: api.statuses.friends_timeline(id=‘europython’) api.statuses.friends_timeline.europython() Update („post message“) api.statuses.update(status=‘message’) Folie 40 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    41. Comparison Python Twitter Libraries Library Supported API Supported Requirements Methods Authentication Python-twitter Status, User, Direct Basic Auth simplejson message Twyt Status, User, Direct Basic Auth, simplejson Message, OAuth Friendship, Social Graph, Block Twitty-twister Status, User, Direct Basic Auth, Twisted message, OAuth Friendship Python Status, User, Direct Basic Auth simplejson, Twitter Tools message (irclib) Folie 41 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    42. Examples and Demos Folie 42 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    43. Example Get all Updates of a User import twitter api = twitter.Api() statuses = api.GetUserTimeline('DLR_de') print [s.text for s in statuses[:5]] [u"Video: @NASA's SOFIA mission update http://tinyurl.com/cmmna3 #SOFIA (Stratospheric Observatory For Infrared Astronomy)", u'Video zur GOCE-Mission (Messung der Schwerkraft) http://tinyurl.com/c5zhdb #euronews', u'(EN) Now following @ESAGermany and @ESAGOCE', u'@AndreasSchepers Gute Frage. Immerhin hat die NASA-Mission keinen Vornamen. #Johannes #ATV #NASA', u'RT @AndreasSchepers Thomas Reiter: Wir wissen mehr xfcber den Mars als den Mond. http://is.gd/k7qZ #Mp3 #DeutschlandRadioKultur #DLR-Vorstand'] Folie 43 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    44. Example Posting an Update import twitter api = twitter.Api(username='python_demo', password='***') api.PostUpdate('Moin!') Folie 44 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    45. Example Adding a Friend („Follow“) import twitter api = twitter.Api(username='python_demo', password='***') user = api.CreateFriendship('pycologne') print user {"description": "Python User Group Cologne", "id": 23515458, "location": "Cologne, Germany", "name": "PyCologne", "profile_image_url": "http://s3.amazonaws.com/twitter_production/profile_images/91413444/p ycologne_logo_small_quadratisch_normal.jpg", "screen_name": "pycologne", "url": "http://www.pycologne.de"} Folie 45 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    46. Example „tail –f“ to Twitter # based on http://code.activestate.com/recipes/157035/ import time, os import twitter api = twitter.Api(username='python_demo', password=‘*') file = open('test.log','r') # ... <Find the size of the file and move to the end> while 1: where = file.tell() line = file.readline() if not line: time.sleep(1) file.seek(where) else: api.PostUpdate(line) Folie 46 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    47. Example „tail –f“ to Twitter Folie 47 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    48. Demo Twitter in Software Engineering Notifications from SVNChecker IDE e.g. Eclipse http://svnchecker.tigris.org/ Checks on source code Commit Coding Style Source code analysis  Access rights a failed check automated test & build results Notification of results Commit and other messages E-Mail, Log file, data bases, Check RSS feeds, Twitter Folie 48 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    49. Demo Twitter on Smart Phones The Twitter libraries work on S60 phones with PyS60 Example: Posting incoming SMS messages to Twitter account import sys sys.path.append("e:Python") # PyS60 import appuifw, e32, inbox # Twyt from twyt import twitter box = inbox.Inbox() box.bind(message_received) print "Waiting for new SMS messages..." appuifw.app.exit_key_handler = quit app_lock = e32.Ao_lock() app_lock.wait() Folie 49 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    50. Demo Posting incoming SMS messages to Twitter account Message evaluation: post SMS as Twitter message def message_received(msg_id): box = inbox.Inbox() sms_text = box.content(msg_id) appuifw.note(u"SMS content: " + sms_text , "info") api = twitter.Twitter() api.set_auth('python_demo', ‘*') api.status_update(sms_text) app_lock.signal() Folie 50 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    51. Demo Twitter in PowerPoint Twitter message on every PowerPoint OnSlideShowNextSlide event The speaker note will be the message, if existing python-twitter Folie 51 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    52. Twitter in PowerPoint Implementation using Python’s win32com (1) Event handler for PowerPoint import twitter api = twitter.Api(username='python_demo', password='*') class EventManager(object): def OnSlideShowNextSlide(self, Wn): i = powerpoint.ActivePresentation. SlideShowWindow.View.Slide.SlideIndex for shape in powerpoint.ActivePresentation. Slides[i-1].NotesPage.Shapes: if shape.TextFrame.HasText: notes = shape.TextFrame.TextRange.Text api.PostUpdate(notes) Folie 52 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    53. Twitter in PowerPoint Implementation using Python’s win32com (2) Dispatch PowerPoint with event handler and listen for events from win32com.client import DispatchWithEvents powerpoint = DispatchWithEvents('PowerPoint.Application', EventManager) powerpoint.Visible = 1 # Listen for events import threading, pythoncom stopEvent = threading.Event() while True: pythoncom.PumpWaitingMessages() stopEvent.wait(.2) if stopEvent.isSet(): stopEvent.clear() break Source: Roy Han’s PyCon 2008 tutorial “Automating Windows Applications with win32com” http://tr.im/q43o Folie 53 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    54. Demo Twitter Notification from MoinMoin Wiki Twitter handler for the MoinMoin Event System python-twitter Folie 54 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009
    55. Questions? Contact http://tr.im/schreiber twitter.com/onyame python@dlr.de Folie 55 EuroPython 2009 > Andreas Schreiber> Twittering with Python > 30.06.2009

    + Andreas SchreiberAndreas Schreiber, 5 months ago

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