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Python and C++ : different compilers ok?

asked 2015-07-31 11:00:33 -0500

TerryJ gravatar image

updated 2015-07-31 11:51:40 -0500

Hi all, I have been looking at opencv (3.0) closely. I haven't decided whether I will have a C++ application or a Python application.

I am wondering what sort of environment C++ developers have? Do you folks mix C++ and Python code? I mean is there any reason for you to pass data structures around from Python to your own C++ extension module? Or perhaps call some simple Python script from my C++ executable?.

In Windows, I plan the following opencv 3 environment: For C++: Use Visual Studio 2012, and get pre built x64 opencv 3.0 build.
For Python : Get the 64 bit anaconda distribution which has everything for opencv bundled. (basically they are not from the same compiler )

Would this pose any problems? Are there situations due to which, later I would have to build Python, numpy, opencv everything later from one common compiler?.
Thanks T

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the prebuilt cv2.pyd is a self-consistant binary, which compiler it was built with, does not matter.

but if you have the c++ version from somewhere, and the python binaries from somewhere else, you probably have a version conflict (i even doubt, that conda will install the opencv 3 version)

last but not least - with opencv3, you will pretty soon discover, that you will need the opencv_contrib repo (facerec, SIFT, and whatnot). and in this case, you will have to build both c++ and python version from src.

maybe installing prebuilt stuff is not such a great idea with 3.0

berak gravatar imageberak ( 2015-08-01 02:23:27 -0500 )edit

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answered 2015-08-01 02:51:55 -0500

TerryJ gravatar image

I see. So, the best thing is to build opencv, python, numpy and everything. Glad I asked this one at an early stage. Thanks.

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Asked: 2015-07-31 11:00:33 -0500

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Last updated: Jul 31 '15