Python3 not found in cmake configure process even though it is installed

Farama-Foundation / Arcade-Learning-Environment

The Arcade Learning Environment (ALE) -- a platform for AI research.

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Python3 not found in cmake configure process even though it is installed #479

Closed JustinS6626 closed 1 year ago

JustinS6626 commented 1 year ago

A little while back, I posted an issue that I had while trying to install ALE for python3.8 with SDL support https://github.com/mgbellemare/Arcade-Learning-Environment/issues/438. I am trying to do the same installation on a different computer, this time with Linux Mint 20.3. When I try to install, I get an error saying that the development files for Python3 are not found even though they are installed. I copied the exact terminal output into an update I posted to the old issue that is linked in this post. I greatly appreciate your help.

JesseFarebro commented 1 year ago

Hi @DarthMalloc,

Is there a reason you're compiling yourself instead of installing the pre-built wheel?

Regardless, I'll give some advice on how to debug this:

CMake might not be finding the right Python installation. You can manually override this with -DPython3_EXECUTABLE=$MY_PYTHON_EXECUTABLE_PATH. This oftentimes solves this issue.
If the above doesn't work can you post the output of python -m sysconfig.

JustinS6626 commented 1 year ago

Thanks! Does installing the pre-built wheel also provide SDL support? If so, I will just use that approach instead.

JesseFarebro commented 1 year ago

Yes! We package SDL with the prebuilt wheels. It should work out of the box.