pycon us 2009: challenges and opportunities for python
TRANSCRIPT
Challengesand
Opportunitiesfor
PythonTed Leung
Sun Microsystems
Scala?
Scala?
Haskell?
Scala?
Haskell?
Erlang?
PHP - 9.4%Python - 5.2%
JavaScript - 3.6%Perl - 3.4%Ruby - 2.6%
0%
7.5%
15%
22.5%
30%
Java C# C Dynamic
Java C# C PHPPython Javascript Perl Ruby
Evans Data Report
O’Reilly Book Sales
Google AppEngine Beta
100,000 signups
0
275
550
825
1100
2004 2005 2006 2007 2008 2009
PyCon Attendance
http://flickr.com/photos/kk/1295074084/
http://www.flickr.com/photos/swamibu/1407809687/
“All Cloud Computing applicationswill be written in dynamic languages”
- Some Analyst
Security
Monitoring
libc.so.1`_write+0x15 libc.so.1`_fflush_u+0x36 libc.so.1`fflush+0x43 libpython2.4.so.1.0`file_flush+0x2a libpython2.4.so.1.0`call_function+0x32a libpython2.4.so.1.0`PyEval_EvalFrame+0xbdf [ build/proto/lib/python/mercurial/transaction.py:49 (add) ] libpython2.4.so.1.0`PyEval_EvalCodeEx+0x732 libpython2.4.so.1.0`fast_function+0x112 libpython2.4.so.1.0`call_function+0xda libpython2.4.so.1.0`PyEval_EvalFrame+0xbdf [ build/proto/lib/python/mercurial/revlog.py:1137 (addgroup) ] libpython2.4.so.1.0`PyEval_EvalCodeEx+0x732 libpython2.4.so.1.0`fast_function+0x112 libpython2.4.so.1.0`call_function+0xda libpython2.4.so.1.0`PyEval_EvalFrame+0xbdf [ build/proto/lib/python/mercurial/localrepo.py:1849 (addchangegroup) ] libpython2.4.so.1.0`PyEval_EvalCodeEx+0x732 libpython2.4.so.1.0`fast_function+0x112 libpython2.4.so.1.0`call_function+0xda libpython2.4.so.1.0`PyEval_EvalFrame+0xbdf [ build/proto/lib/python/mercurial/localrepo.py:1345 (pull) ] libpython2.4.so.1.0`PyEval_EvalCodeEx+0x732 libpython2.4.so.1.0`fast_function+0x112
Elasticity
http://www.flickr.com/photos/aloshbennett/3209564747/
Cores != Threads
16 threads
128 threads
Transactional Memory
Treat main memory as a database
An MVCC database
People understand transactions
Transactions compose
Inefficient
Non abortable operations - like I/O
Non-transactional code
!
!"#$%&'(%)*"+",-./*
Actors
http://www.flickr.com/photos/leeander/3172415460/
Futures
A=Future(function, arg1, arg2 ...)
MapReduce
Persistent Data Structures
Tuple Spaces
ABP work stealing
http://www.flickr.com/photos/kgradinger/275818876/
serverjs
http://www.flickr.com/photos/dos82/3047823578/
http://www.flickr.com/photos/bitzcelt/2903751010/
Do we want to?
http://flickr.com/photos/kk/1295074084/
http://www.flickr.com/photos/jow/2850092362/
easy_install
setuptools pip
zc.buildout
virtualenv
distutils Paver
Py3K
OMG!
http://flickr.com/photos/laughingsquid/218983827/ Scott Beale / LaughingSquid.com
http://flickr.com/photos/mojodenbowsphotostudio/95796251/
Do we want to?
http://flickr.com/photos/kk/1295074084/
