Transcript A quick introduction to psyco: The Python Compiler

A quick introduction to
psyco: The Python Compiler
Geoff Davis
Triangle ZPUG
December 6
What is psyco?
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Open source python compiler
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http://psyco.sourceforge.net
Very easy to use
Only works on 32-bit x86 processors
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(or 64 bit in 32-bit compatibility mode)
How to use psyco
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Quick overview:
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import psyco
psyco.full()
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That’s it!
psyco then takes over
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DEMO
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Play nice with Macs
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If distributing code for mixed platforms, put
code in a try block:
try:
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import psyco
psyco.full()
except:
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pass
Use psyco selectively
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psyco tries to compile everything
Not always useful
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Compilation overhead
Uses lots of memory
Disables pdb
Can use psyco more selectively
Precision psyco
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Can tell psyco to compile individual functions
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Can have both compiled and uncompiled versions:
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E.g. SpeedPack
Profiled everything in CMF, then compiled slowest methods
with psyco
fastfunction = psyco.proxy(slowfunction)
DEMO
Plug for 10 minute talks
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Easy to put together! Took me 1 hour
Lots of stuff would be useful in this format
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Editors / IDEs
Debugging tools
Plone/Zope products
Pure python products
No need for a huge, involved presentation
Please volunteer!