Calling Python plotting routine from Fortran?

Question

Does anyone know how to run a Python matplotlib routine from Fortran? The way I am currently doing it is with:

            call system('python plottingV.py')

However, I'd like to be able to interact with the script (I want to give the python routine a different input file on each iteration of a do loop. Any ideas?

You could manipulate the argument to `system` to provide an argument to your script... — Alexander Vogt, Jul 09 '15 at 18:32
See e.g. [here](https://stackoverflow.com/questions/6146516/writing-multiple-output-files-in-fortran). [This](https://stackoverflow.com/questions/30643905/converting-integer-to-character-in-fortran90/30646472) might also be of interest. — Alexander Vogt, Jul 09 '15 at 18:34

score 2 · Answer 1 · answered Jul 09 '15 at 18:33

2

The simplest thing would be to give your python script a command line parameter, namely the input file name. Something like:

call system ('python plottingV.py myInputFile1.dat')

You can then use sys.argv[1] to obtain the input file name in your python script.

answered Jul 09 '15 at 18:33

Jacques de Hooge

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Is there any reason to recommend `system` over Fortran's `execute_command_line`? – francescalus Jul 09 '15 at 18:38
execute_command_line would be better, since it is standard, but it is not yet supported by all compilers – Jacques de Hooge Jul 09 '15 at 18:41
Notably Intel Fortran did not recently support `execute_command_line` yet. – Vladimir F Героям слава Jul 09 '15 at 18:54

score -1 · Answer 2 · answered Jul 12 '15 at 04:45

-1

Here is a basic pyplot-fortran interface that might be useful.

answered Jul 12 '15 at 04:45

Time Laird

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Calling Python plotting routine from Fortran?

2 Answers2