l0re / python-examples

Example snippets for Python usage in scientific computation

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python-examples

Overview

This repository contains sample code for regular tasks when doing simulation in Python. Python is a really great environment for scientific computation. It allows rapid prototyping, efficient programming and together with the additional fast typed array handling package numpy it is also well suited for numerics.

Moreover, there are many mature additinal packages for scientific computing (scipy, sympy, networkx, ...) as well as bindings to allows major OSS scientific libraries. A native plotting package (matplotlib) complements the functionality and makes it a full fledged replacement for commercial tools.

The Python interpreter is rather slow compared to plain C/C++ code, so all computationally intensive tasks should be outsourced to C/C++ routines, whether by calling existing libraries or integrating own code. Thanks to tools like Cython, interfacing between Python and C/C++ gets easy and even let one choose between different levels of integration.

Examples

  • ctypes-numpy: Demonstrates how to write a wrapper for an existing shared library based on the ABI interface which passes numpy arrays as data.
  • cython-numpy: Demonstrates interfacing to C library and passing numpy arrays with Cython. Cython generates intermediate C wrapper code and could be linked either statically or dynamically against the C project.

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Example snippets for Python usage in scientific computation


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