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HTML5 - The Python Angle (PyCon Ireland 2010)
HTML5 is a new platform for web development that includes features like offline application caching, 2D drawing with Canvas, local storage, web workers, notifications, and web sockets. Python can be used in the HTML5/RIA space through frameworks like Pyjamas that compile Python to JavaScript. However, for client-side development JavaScript will likely continue growing in popularity over Python due to its seamless integration and the lack of compelling reasons to replace JavaScript with Python in browsers.
HTML5 - The Python Angle (PyCon Ireland 2010)
- 1. HTML5 - ThePython Angle
- 2. What is thispresentation about? A new platform for development is emerging in HTML5 What is HTML5?
- 3. What is thePython Angle?
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- 5. It's all aboutthe HYPE HTML
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- 10. HTML5 Features CoreHTML5 Stuff
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- 13. HTML5 Javascript APIsOffline Application Cache
- 14. Canvas – 2DContext
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- 21. 1. Offline ApplicationsCache Define manifest in HTML tag
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- 23. Edit -> Preferences-> Advanced -> Network IE Firefox Safari Chrome iPhone Android No Yes Yes Yes Yes Yes
- 24. 2. Canvas 2DContext Fast access for 2D drawing
- 25. 3D Context (Web-GL)IE Firefox Safari Chrome iPhone Android Yes* Yes Yes Yes Yes Yes * 3 rd party explorercanvas maps canvas to IE (VML)
- 26. 3. Storage Web-storage(localStorage/globalStorage)
- 27. Web SQL replacedby IndexedDB IE Firefox Safari Chrome iPhone Android Yes Yes Yes Yes Yes Yes
- 28. 4. Web WorkersBackground process with limited interaction IE Firefox Safari Chrome iPhone Android No Yes Yes Yes No Yes
- 29. 5. Notifications Server sent events – not going anywhere
- 30. Comms API –Cross window
- 31. Comms API –Channel IE Firefox Safari Chrome iPhone Android No Yes Yes Yes ? ?
- 32. 6. Web SocketsLong living sockets
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- 34. Green Unicorn IEFirefox Safari Chrome iPhone Android No Yes Yes Yes Yes ?
- 35. 7. Geolocation Locatethe browser IE Firefox Safari Chrome iPhone Android No Yes Yes Yes Yes Yes
- 36. 8. Odds andEnds Drag and Drop
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- 41. Audio / Videotags
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- 45. Distributed (rather thanthin client)
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- 48. RIA Frameworks PluginsJava Applets
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- 50. Flash / AdobeFlex Javascript target (Client only) Javascript frameworks with GUI builders: qooxdoo, ExtJS (sencha), Prototype, UIZE, TurboWidgets, TIBCO and 100 more SproutCore (apple sponsored)
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- 52. JavascriptMVC Javascript target(Client and Server) OpenLaszlo
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- 55. Python in HTML5/RIASpace Pyjamas Pyjamas / GWT Widgets
- 56. Pyjamas / PureMVC Skulpt
- 57. What does PyjamasNeed? Positive: Documentation is good (but out of date)
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- 59. Uses python –good for large projects
- 60. Debuggable (in nativeLinux deployment)
- 61. Can get tomost of the DOM
- 62. New java2python translator(Thomas Kalka) Not so good: Wysiwyg editor / IDE integration needed (learning curve)
- 63. Output Files aretoo large
- 64. Poor Integration toback end – needs single model
- 65. Insufficient Traction –needs more developers/money
- 66. Native tool chainsupport missing in Ubuntu 9.10+
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- 68. Critical Success FactorsJython found a niche... Jython is an improvement over Java in that it is concise, avoiding all the static typing
- 69. Jython allows youto use both Java libraries and Python libraries e.g. beautiful soup
- 70. Jython can beused interactively
- 71. Don't need torecompile
- 72. Features in Jythonsuch as lambda not in Java Python's Client Side strengths could be... Powerful and simple language
- 73. Rich source codebase
- 74. Build from serversuccesses – seamless environments needed
- 75. Python can't “beat”Javascript Server side JavaScript will grow
- 76. Developers need integrationbetween client and server frameworks (rails/prototype)
- 77. There is notenough reason to replace JS with Python on Client
- 78. References Useful Sites:http://www.html5rocks.com
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Editor's Notes
- #5 Steve Jobs – we support two platforms at Apple – the first is HTML5, a fully open, uncontrolled platform. We fully support HTML5, love the technology in it and Apple's browsers are the lead in terms of HTML5 Support. June 7 th 2010
- #6 Introduce pyjamas at this point
- #17 Right now examples include gmail,, google docs or yahoo email on the iphone. scribd.com
- #18 You could use jython in java applets