Sunday, September 6, 2009

More Shedskin Python

Previously I discussed Shedskin Python, a Python compiler I used on my ACO TSP test program. My test program is now being included as one of the example programs with Shedskin.

The earlier discussed version of Shedskin used intermediate templated C++ code to support the parametric polymorphism (generic functions) inherent in dynamically typed Python programs. In the most recent versions this templating has been dropped, as it was found to be complex to maintain and rarely useful. So my palindrome examples no longer compile.

In testing could also be sped up by 1.5x with the following shedskin flags:

-b --nobounds Disable bounds checking
-r --random Use fast random number generator
-w --nowrap Disable wrap-around checking