F2PY is a great package allowing you to run a lot of Fortran code from Python. Fortran 77 code naturally has a high chance of success.
Fortran 90 code can also work, but very elaborate Fortran 90 code may not work.
On Linux, all you need to do is
sudo apt-get install python-numpy gfortran
On Windows, the f2py setup is more involved. You need the MinGW compiler and to modify your system path. I assume here that you have Anaconda Python with Numpy 1.9 installed already. This procedure was used on a 64-bit Windows 10 machine.
1) install MinGW-W64 with the setup settings:
Version 4.9.2 (or newer)
Build revision: 2
2) Insert the mingw bin path to your system path. I did this permanently by going into Windows Advanced System Settings, Environment Variables, System variables, Path, and at the end put:
check to see if that’s where your gfortran.exe is at.
test your installation by say using the lowtran7 code.
Following the instructions there, you should get a
lowtran7.pyd file that is invoked when running
python pylowtran7.py and you’ll see a plot of atmospheric loss.
Note: If you get the “NotImplementedError: Only MS compiler supported with gfortran on win64″, that is still occurring with Numpy 1.9.2, but has been patched in the master branch (to be released in a future version of Numpy). You can patch this yourself in c:\Anaconda\Lib\site-packages\numpy\distutils\fcompiler\gnu.py on line 337. Comment out the
and simply replace with the word
and you’ll be working.