Support Python3 about robot-testing-framework HOT 14 OPEN

Python 2 reached its end of life

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Hi guys,
allways glad to hear from you even it is an issue ;)
I am a bit out of the discussion. we are using RTF mostly woth python (2.7) and everything is fine. is the main issue with Python 3.x?

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Hi @apaikan ,
happy to hear from you, hope everything is ok.

Back in the days I tried to get RTF to work on Python 3, but I was unable to port all the part using Py_InitModule4 (around https://github.com/robotology/robot-testing/blob/c7c00459f721648c8f74f973a881d9078a206c50/src/plugins/python/src/PythonPluginLoader.cpp#L134) to use Python 3, that changed that APIs. https://docs.python.org/3/howto/cporting.html is probably useful, but I was unable to get it to work.

Given that Python 2 will be officially unsupported in less than 10 months (see https://pythonclock.org/) I was trying to raise awareness on this issue.

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2 months left to python 2 end of life, and still no python 3 support 😞

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The C API of the Python interpreter changed between Python 2 and Python 3, and we use it in

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@traversaro which versions of python have been installed?

anyway, there is a cmake option RTF_USE_PYTHON_VERSION to force using specific version of python for binding. can you please check it?

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Checked it, the problem is that some RTF is not compatible with Python 3. Working on it right now.

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Relevant link: https://docs.python.org/2/howto/cporting.html .

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Giving up as for the moment I don't know enough of Python internals to do it (especially to properly substitute the Py_InitModule4 function), just preselecting Python 2 in the cmake for now and opening a new issue to track Python 3 support.

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Relevant: https://pythonclock.org/ .

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The Python clock is rapidly ticking. : )
If we do not think we can commit effort to fix this, probably the cleanest thing to do is just to drop Python support in RTF.
@aerydna @drdanz @lornat75

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Given that Python 2 will be officially unsupported in less than 10 months (see https://pythonclock.org/) I was trying to raise awareness on this issue.

I didn't know about it... WONDERFUL ❤️

I agree, or we port it, or we drop it 😬

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i am for dropping the compatibility

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But what is the main incompatibility issue?
What it is blocking ?

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