How to execute python from C++

Question

I have a C++ program that needs to make certain calls to a library which is written in Python. (As opposed to rewriting the entire library in C++...)

What's the simplest way to do this? I need to pass 2 numbers into the library, and get 2 numbers back.

I need it to be portable and run in both Windows and Linux, so for example using POSIX popen is not possible.

So far the best solution I have is to write a python wrapper, called by a "system" call in the C++ code, that takes command line parameters, calls the function, and writes the result to a file, which is then opened by the C++ program.

If you know anything better please let me know...

https://stackoverflow.com/questions/39539089/what-files-are-required-for-py-initialize-to-run. — CristiFati, Sep 16 '19 at 17:46

Oblivion · Accepted Answer · 2019-09-16T17:52:38.383

6

If boost is an option, you can use boost.python : embedding

edited Sep 16 '19 at 17:52

answered Sep 16 '19 at 17:45

Oblivion

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The most relevant part of that doc is here: https://www.boost.org/doc/libs/1_71_0/libs/python/doc/html/tutorial/tutorial/embedding.html – Chronial Sep 16 '19 at 17:49

score 1 · Answer 2 · answered Sep 16 '19 at 17:51

1

You can directly embed the python interpreter into your application. See the official documentation for a full explanation.

answered Sep 16 '19 at 17:51

Chronial

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How to execute python from C++

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