Py2Cy

Py2Cy is a Genetic Improvement tool that automatically converts Python to Cython code to speed up execution speed.

Prerequisites

• Python 3.5+
• Cython

Usage

Paramaters:

• Target python file path
• Mode (exhaustive, random, local)
• Iterations
• Epoch
• Test cases file path

Example

python improve_cython.py --project_path examples/fib.py --mode local --iter 20 --test test_fib.py

When the run is finished, the optimal patch will be found in output/result.pyx

Files

improve_cython.py: Used to set parameters and run a search on a python file
program.py: Represents a single Cython file
cython_tree.py: Utility methods for the Cython AST, including the conversion code
cython_visitor.py: Contains several implementations of visitor classes to get/edit nodes in a Cython AST
patch.py: Represents a single patch
edit.py: code to insert a type to a node