FILUM is a Python library which can work with information in files.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
FILUM is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a Mathematica version and a MATLAB version and a Python version.
You can go up one level to the Python source codes.