[Python-Dev] Do more at compile time; less at runtime (original) (raw)

Ned Batchelder ned at nedbatchelder.com
Tue Dec 11 17:45:48 CET 2012


On 12/9/2012 5:22 PM, Mark Shannon wrote:

The current CPython bytecode interpreter is rather more complex than it needs to be. A number of bytecodes could be eliminated and a few more simplified by moving the work involved in handling compound statements (loops, try-blocks, etc) from the interpreter to the compiler.

As with all suggestions to optimize the bytecode generation, I'd like to re-iterate the need for a way to disable all optimization, for the sake of reasoning about the program. For example, debugging, coverage measurement, etc. This idea was misunderstood and defeated in http://bugs.python.org/issue2506, but I strongly believe it is important.

--Ned.



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