Pies is a Python2 & 3 Compatibility layer with the philosophy that all code should be Python3 code. Starting from this viewpoint means that when running on Python3 pies adds virtually no overhead. Instead of providing a bunch of custom methods (leading to Python code that looks out of place on any version) pies aims to back port as many of the Python3 API calls, imports, and objects to Python2 - Relying on special syntax only when absolutely necessary.