State of Python (2010)
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A (somewhat rambling) presentation giving an overview of the state of the Python programming language in January, 2010.
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State of Python (2010)
- 1. State of Python January, 2010 Richard Jones richard@python.org
- 2. Some History
- 3. Some History • Development started December, 1989
- 4. Some History • Development started December, 1989 • 0.9.0 released February, 1991
- 5. Some History • Development started December, 1989 • 0.9.0 released February, 1991 • 1.5.2 released April, 1999
- 6. Some History • Development started December, 1989 • 0.9.0 released February, 1991 • 1.5.2 released April, 1999 • 2.0 released October, 2000
- 7. Some History • Development started December, 1989 • 0.9.0 released February, 1991 • 1.5.2 released April, 1999 • 2.0 released October, 2000 • py3k branched & PEP 3000 March, 2006
- 8. Some History • Development started December, 1989 • 0.9.0 released February, 1991 • 1.5.2 released April, 1999 • 2.0 released October, 2000 • py3k branched & PEP 3000 March, 2006 • 3.0 released November 25, 2008
- 9. Some History • Development started December, 1989 • 0.9.0 released February, 1991 • 1.5.2 released April, 1999 • 2.0 released October, 2000 • py3k branched & PEP 3000 March, 2006 • 3.0 released November 25, 2008 • 3.1 released June 27th, 2009
- 10. What’s New In 3.1
- 11. What’s New In 3.13.0
- 12. What We Utterly Broke In 3.0 With No Regard For The Consequences
- 13. What’s New In 3.0
- 14. What’s New In 3.0 • print() and exec() are still functions
- 15. What’s New In 3.0 • print() and exec() are still functions • dict.keys(), dict.items(), dict.values(), map(), filter() and zip() still return iterators
- 16. What’s New In 3.0 • print() and exec() are still functions • dict.keys(), dict.items(), dict.values(), map(), filter() and zip() still return iterators • text is still unicode and files still read bytes
- 17. What’s New In 3.0 • print() and exec() are still functions • dict.keys(), dict.items(), dict.values(), map(), filter() and zip() still return iterators • text is still unicode and files still read bytes • as, with, True, False and None are still keywords
- 18. What’s New In 3.0
- 19. What’s New In 3.0 • exception chaining is still there
- 20. What’s New In 3.0 • exception chaining is still there • the standard library is still better-organised
- 21. What’s New In 3.0
- 22. What’s New In 3.0 • old-style classes are still gone
- 23. What’s New In 3.0 • old-style classes are still gone • cmp(), reduce(), apply(), coerce(), callable() and raw_input() are still the way of the dodo
- 24. What’s New In 3.0 • old-style classes are still gone • cmp(), reduce(), apply(), coerce(), callable() and raw_input() are still the way of the dodo • `` and <> are also still gone
- 25. What’s New In 3.0 • old-style classes are still gone • cmp(), reduce(), apply(), coerce(), callable() and raw_input() are still the way of the dodo • `` and <> are also still gone • string exceptions are still no more
- 26. What’s New In 3.0 / 2.6
- 27. What’s New In 3.0 / 2.6 • multiprocessing
- 28. What’s New In 3.0 / 2.6 • multiprocessing • io and json
- 29. What’s New In 3.0 / 2.6 • multiprocessing • io and json • tkinter.ttk (new complementary widgets, styling through “style sheets”)
- 31. What’s New In 3.0 / 2.6
- 32. What’s New In 3.0 / 2.6 • advanced string formatting
- 33. What’s New In 3.0 / 2.6 • advanced string formatting • Abstract Base Classes (and function annotation in 3.0)
- 34. What’s New In 3.0 / 2.6 • advanced string formatting • Abstract Base Classes (and function annotation in 3.0) • 0o21 == 17 0b1101 == 13
- 35. What’s New In 3.0 / 2.6 • advanced string formatting • Abstract Base Classes (and function annotation in 3.0) • 0o21 == 17 0b1101 == 13 • Class decorators
- 36. What’s New In 3.0 / 2.6
- 37. What’s New In 3.0 / 2.6 • added numbers, fractions, cmath, ssl modules
- 38. What’s New In 3.0 / 2.6 • added numbers, fractions, cmath, ssl modules • new toys in math, functools, itertools, collections
- 39. What’s New In 3.1
- 40. What’s New In 3.1 • python can execute packages (and zip files)
- 41. What’s New In 3.1 • python can execute packages (and zip files) • unittest supports skipping tests
- 42. What’s New In 3.1 • python can execute packages (and zip files) • unittest supports skipping tests • sys.version_info is a named tuple >>> sys.version_info sys.version_info(major=3, minor=1, micro=1, releaselevel='final', serial=0)
- 43. What’s New In 3.1 • python can execute packages (and zip files) • unittest supports skipping tests • sys.version_info is a named tuple >>> sys.version_info sys.version_info(major=3, minor=1, micro=1, releaselevel='final', serial=0) • improved Python 2 pickle support
- 44. What’s New In 3.1 / 2.7
- 45. What’s New In 3.1 / 2.7 • thanks David Gay: >>> 1.1 1.1000000000000001 becomes... >>> 1.1 1.1
- 46. What’s New In 3.1 / 2.7 • thanks David Gay: >>> 1.1 1.1000000000000001 becomes... >>> 1.1 1.1 • still doesn’t make this correct: 1.1 + 2.2 = 3.3
- 47. What’s New In 3.1 / 2.7
- 48. What’s New In 3.1 / 2.7 • io & json rewritten in C
- 49. What’s New In 3.1 / 2.7 • io & json rewritten in C • memoryview object (mutable byte array)
- 50. What’s New In 3.1 / 2.7 • io & json rewritten in C • memoryview object (mutable byte array) • ordered dictionary
- 51. LESS BUGS
- 52. What’s New In 3.1 STILL B0RKS UR CODEZ!
- 53. Books • Python 3 for Absolute Beginners by Tim Hall and J-P Stacey • Programming in Python 3 (Second Edition) by Mark Summerfield
- 54. Books • Dive Into Python 3 by Mark Pilgrim Python 3 Patterns, Recipes and Idioms by Bruce Eckel and Friends
- 55. Books • Invent Your Own Computer Games with Python (Second Edition) by Albert Sweigart
- 56. Other Books in 2009 • IronPython in Action by Michael Foord
- 57. Other Books in 2009 • Head First Programming by Paul Barry and David Griffiths • Python for Software Design: How to Think Like a Computer Scientist by Allen B. Downey
- 58. Other Books in 2009 • Gray Hat Python: Python Programming for Hackers and Reverse Engineers by Justin Seitz • Hello World! Computer Programming for Kids and Other Beginners by Warren Sande and Carter Sande
- 60. Python 2.7
- 61. Python 2.7 • expected in June - alpha 2 out now
- 62. Python 2.7 • expected in June - alpha 2 out now • includes backporting from 3.1
- 63. Python 2.7 • expected in June - alpha 2 out now • includes backporting from 3.1 • will be the last 2.x release
- 64. IronPython
- 65. IronPython • Runs on the .NET CLR
- 66. IronPython • Runs on the .NET CLR • 2.6 released December 2009
- 67. IronPython • Runs on the .NET CLR • 2.6 released December 2009 • Visual Studio integration higher priority than IronPython 3
- 68. Jython
- 69. Jython • Python compiled to the Java VM
- 70. Jython • Python compiled to the Java VM • 2.5.1 released September 2009
- 71. Jython • Python compiled to the Java VM • 2.5.1 released September 2009 • target CPython 2.7 for next major release
- 72. PyPy • Python in Python • Michael Hudson will talk about that
- 74. Migration Progress • SQLAlchemy (so db layers too)
- 75. Migration Progress • SQLAlchemy (so db layers too) • Distribute (was “setuptools”)
- 76. Migration Progress • SQLAlchemy (so db layers too) • Distribute (was “setuptools”) • pygame reloaded (pgreloaded)
- 77. Migration Progress • SQLAlchemy (so db layers too) • Distribute (was “setuptools”) • pygame reloaded (pgreloaded) • Django (mostly done)
- 78. Migration Progress • SQLAlchemy (so db layers too) • Distribute (was “setuptools”) • pygame reloaded (pgreloaded) • Django (mostly done) • numpy has a plan http://www.scipy.org/Python3k
- 81. Migration Progress • http://wiki.python.org/moin/PortingPythonToPy3k • python-porting mailing list http://mail.python.org/mailman/listinfo/python-porting
- 82. Migration Progress • http://wiki.python.org/moin/PortingPythonToPy3k • python-porting mailing list http://mail.python.org/mailman/listinfo/python-porting • a bunch of very useful reference code http://code.google.com/p/python-incompatibility/
- 84. 2to3c • an implementation of Python's 2to3 for C code
- 85. 3to2 • GSoC project • http://bitbucket.org/amentajo/lib3to2/
- 86. Language Moratorium Temporary suspension of all changes to the Python language syntax, semantics, and built-ins for a period of at least two years from the release of Python 3.1
- 87. Python 3 speedup
- 88. Python 3 speedup
- 89. Python 3 speedup • Unladen Swallow to be merged into py3k (Google’s efforts to speed up Python)
- 90. Python 3 speedup • Unladen Swallow to be merged into py3k (Google’s efforts to speed up Python) • A more rational GIL
- 91. Community
- 92. Community • Kiwi PyCon (woot)
- 93. Community • Kiwi PyCon (woot) • planet.python.org
- 94. Community • Kiwi PyCon (woot) • planet.python.org • www.python-forum.org/pythonforum
- 95. Community • Kiwi PyCon (woot) • planet.python.org • www.python-forum.org/pythonforum • PyPI comments
- 97. Skulpt
- 99. Skulpt • http://www.skulpt.org/ • entirely in-browser implementation of Python
- 100. Skulpt • http://www.skulpt.org/ • entirely in-browser implementation of Python • No preprocessing, plugins, or server-side support required
- 101. Shed Skin 0.3 • Python-to-C++ compiler • improved type inference • support for 'map', 'filter', 'reduce', the 'with' statement • many more library modules supported • several important optimizations
- 102. tinypy • cython, pyrex • tinpy → C++ → XCode → iPhone
- 103. Distribute & pip • replaces setuptools and easy_install • Distribute compatible with python 3 ... pip soon
- 104. Web Stuff
- 105. Web Stuff • Django 1.2 on the way (alpha Jan 2010) (full Python 3 support in a year or so)
- 106. Web Stuff • Django 1.2 on the way (alpha Jan 2010) (full Python 3 support in a year or so) • TurboGears 2.1 coming (2.0 was June 2009)
- 107. Web Stuff • Django 1.2 on the way (alpha Jan 2010) (full Python 3 support in a year or so) • TurboGears 2.1 coming (2.0 was June 2009) • CherryPy 3.1.2 in April 2009 3.2 due out soon supports Python 3
- 108. Web Stuff • Django 1.2 on the way (alpha Jan 2010) (full Python 3 support in a year or so) • TurboGears 2.1 coming (2.0 was June 2009) • CherryPy 3.1.2 in April 2009 3.2 due out soon supports Python 3 • Pylons 0.9.7 in February 2009 Python 3 support (Pylons 1.1) mid-2010?
- 109. Web Stuff • 6th Plone Conf 2009 • 2nd DjangoCon 2009 • Django Ski 2010
- 111. virtualenv
- 112. virtualenv • stand-alone python environments
- 113. virtualenv • stand-alone python environments • with or without system extensions
- 114. virtualenv • stand-alone python environments • with or without system extensions • use it!
Editor's Notes
- so a good place to start is &#x201C;what&#x2019;s new in 3.1&#x201D;
- so a good place to start is &#x201C;what&#x2019;s new in 3.1&#x201D;
- so a good place to start is &#x201C;what&#x2019;s new in 3.1&#x201D;
- so a good place to start is &#x201C;what&#x2019;s new in 3.1&#x201D;
- so a good place to start is &#x201C;what&#x2019;s new in 3.1&#x201D;
- so a good place to start is &#x201C;what&#x2019;s new in 3.1&#x201D;
- so a good place to start is &#x201C;what&#x2019;s new in 3.1&#x201D;
- an even better place is to maybe recap what 3.0 gave us
- or, as some sections of the media and Slashdot reported ...
- I think we can all remember where we were on that fateful day when Google just stopped working when 3.0 was released. Oh, those were the days.
- urllib/urllib2 -> urllib (package); httplib/cookielib/BaseHTTPServer(etc) -> http.client, http.server; anydbm/dbhash/gdbm/etc -> dbm; xmlrpclib/SimpleXMLRPCServer -> xmlrpc; also PEP 8 changes (ConfigParser -> configparser)
- urllib/urllib2 -> urllib (package); httplib/cookielib/BaseHTTPServer(etc) -> http.client, http.server; anydbm/dbhash/gdbm/etc -> dbm; xmlrpclib/SimpleXMLRPCServer -> xmlrpc; also PEP 8 changes (ConfigParser -> configparser)
- also in 2.6 (note &#x201C;T&#x201D;kinter)
- also in 2.6 (note &#x201C;T&#x201D;kinter)
- also in 2.6 (note &#x201C;T&#x201D;kinter)
- you can get a bunch of the 3.0 features in 2.6 using __future__ (eg. unicode literals)
- you can get a bunch of the 3.0 features in 2.6 using __future__ (eg. unicode literals)
- you can get a bunch of the 3.0 features in 2.6 using __future__ (eg. unicode literals)
- you can get a bunch of the 3.0 features in 2.6 using __future__ (eg. unicode literals)
- math: inf, -inf, nan, factorial, inverse hyperbolic functions and a bunch of others functools: reduce() itertools: cartesian product of iterables, combinations, permutations collections: namedtuple, deque enhancements, ABCs for Iterable and Mappings
- math: inf, -inf, nan, factorial, inverse hyperbolic functions and a bunch of others functools: reduce() itertools: cartesian product of iterables, combinations, permutations collections: namedtuple, deque enhancements, ABCs for Iterable and Mappings
- hackers, reverse engineers debuggers, torjans, fuzzers, emulators, code/library injection, sniffing, ...
- warning with the code download
- (2 enters maintenance mode) To reassure people on this, 2.5.5 has just been released.
- (2 enters maintenance mode) To reassure people on this, 2.5.5 has just been released.
- (2 enters maintenance mode) To reassure people on this, 2.5.5 has just been released.
- - 2.5 already supports some of CPython 2.6&#x2019;s features (eg. class decorators) - the backported 3.1 features in 2.7 aid 3.1 compatibility - unicode by default helps IronPython and Jython
- - 2.5 already supports some of CPython 2.6&#x2019;s features (eg. class decorators) - the backported 3.1 features in 2.7 aid 3.1 compatibility - unicode by default helps IronPython and Jython
- - 2.5 already supports some of CPython 2.6&#x2019;s features (eg. class decorators) - the backported 3.1 features in 2.7 aid 3.1 compatibility - unicode by default helps IronPython and Jython
- some big-name projects are done, some not so much posgresql but not mysql, even pl/python in psql supports 2&3
- some big-name projects are done, some not so much posgresql but not mysql, even pl/python in psql supports 2&3
- some big-name projects are done, some not so much posgresql but not mysql, even pl/python in psql supports 2&3
- some big-name projects are done, some not so much posgresql but not mysql, even pl/python in psql supports 2&3
- some big-name projects are done, some not so much posgresql but not mysql, even pl/python in psql supports 2&3
- - due to last for entire 3.3 release cycle - Slow things down for a while to: 1. Let py3k settle for a while, 2. Let alternative implementations catch up - It&#x2019;s not because &#x201C;we&#x2019;re done&#x201D;
- Old GIL: ticks; multi-core systems degenerated badly New GIL: time (5ms by default) multi-core performance unaffected (still only one thread at a time though)
- Old GIL: ticks; multi-core systems degenerated badly New GIL: time (5ms by default) multi-core performance unaffected (still only one thread at a time though)
- Old GIL: ticks; multi-core systems degenerated badly New GIL: time (5ms by default) multi-core performance unaffected (still only one thread at a time though)
- The goal of cython could be described as providing an easy way to convert a Python module into a C extension.
- Django 1.2: multiple databases, improved CSRF, configurable email backends, messaging framework, smarter &#x201C;if&#x201D; tag, localization improvement, and a ton of other stuff
- Django 1.2: multiple databases, improved CSRF, configurable email backends, messaging framework, smarter &#x201C;if&#x201D; tag, localization improvement, and a ton of other stuff
- Django 1.2: multiple databases, improved CSRF, configurable email backends, messaging framework, smarter &#x201C;if&#x201D; tag, localization improvement, and a ton of other stuff
- Django 1.2: multiple databases, improved CSRF, configurable email backends, messaging framework, smarter &#x201C;if&#x201D; tag, localization improvement, and a ton of other stuff
- Django Ski - Whistler, 2-4 March 2010