F2PY Users Guide and Reference Manual

The purpose of the F2PY –Fortran to Python interface generator– is to provide a connection between Python and Fortran languages. F2PY is a part of NumPy (numpy.f2py) and also available as a standalone command line tool f2py when numpy is installed that facilitates creating/building Python C/API extension modules that make it possible

• to call Fortran 77/90/95 external subroutines and Fortran 90/95 module subroutines as well as C functions;

• to access Fortran 77 COMMON blocks and Fortran 90/95 module data, including allocatable arrays

from Python.

• Three ways to wrap - getting started
  • The quick way
  • The smart way
  • The quick and smart way
• Signature file
  • Python module block
  • Fortran/C routine signatures
  • Extensions
• Using F2PY bindings in Python
  • Scalar arguments
  • String arguments
  • Array arguments
  • Call-back arguments
  • Common blocks
  • Fortran 90 module data
• Using F2PY
  • Command f2py
  • Python module numpy.f2py
• Using via numpy.distutils
• Advanced F2PY usages
  • Adding self-written functions to F2PY generated modules
  • Modifying the dictionary of a F2PY generated module
  • Dealing with KIND specifiers

For downstream package authors Three ways to wrap - getting started