running c++ code from python
Solution 1
To execute C++ code in python, you could effectively use boost python, here is a tutorial: http://www.boost.org/doc/libs/1_59_0/libs/python/doc/index.html You write a kind of wrapper outside you C++ code.
If it is C code, python has internal library called ctypes.
In both case, you should compile the C/C++ code into shared library.
Solution 2
A couple of other options besides Boost.python are SIP and SWIG (Simplified Wrapper and Interface Generator). Like Boost, SIP and SWIG are open source.
SWIG is particularly powerful, but also a bit hairy. It provides support for interfacing C and C++ with a boatload of other languages including (not a complete list) Python, Perl, Lua, Tcl/Tk, Ocaml, Ruby, Java. One aspect of SWIG is that it parses your C++ headers. This has benefits and pitfalls. A benefit is that it does most of the work of generating the interfaces. A downside is that it doesn't handle some of the dark corners of C++ 2003, and it hasn't stepped up to C++11 at all. Another downside is that compilation of a large project becomes slow. Very, very slow.
Solution 3
Using boost.python sounds like a good solution for me. But depending on your C++ experience this can be quite tricky. A good point to start is here:
http://wiki.python.org/moin/boost.python
Boost.Python enables you to export C++ classes and member functions to Python to be able to use them from there.
frazman
Updated on July 05, 2022Comments
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frazman almost 2 years
I want to execute a code helloword.cpp which takes in some argument from console parses those arguments and then prints "hello world" in the console.
Now, I want to parse these arguments from a python scripts parsearguments.py
So for example:
def parse_arguments: ...# some code return arguments
Now, how do i communicate between python and c++. I have been reading and see that cython, boost python are the options but I have a hard time finding the right simple hello world example.
Any suggestions will be appreciated. Thanks