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Peephole optimizations on CPython?

+2 votes
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http://www.python.org/workshops/1998-11/proceedings/papers/montanaro/montanaro.html

Just wanted to clarify whether CPython already includes these kind of byte code optimizations? Are all the temporary variables removed when byte code is generated?

posted Feb 17, 2014 by Seema Siddique

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1 Answer

+2 votes

You can check these things for yourself:

import dis
dis.dis(function)

will show you the byte code.

But in general, I would expect not. CPython (that's the Python you probably use) doesn't do a lot of optimization apart from some simple constant folding. If you're interested in optimizing Python, you should look at the JIT optimizing Python compiler, PyPy.

answer Feb 17, 2014 by Dewang Chaudhary
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