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1

Python.h file not found on Ubuntu 20.04 even after installing python-dev

rated 0 times [ 1] [ 0] / answers: 1 / hits: 8959 / 2 Years ago, sat, september 10, 2022, 2:12:49

I just switched to Linux (Ubuntu 20.04) from Windows. After installing python-dev I notice that Python.h is still not included, which breaks my integrated Python-C++ build (I'm using pybind11). I also tried to install every other variant of python-dev I saw mentioned online (python3-dev, python-devel, etc.) but to no avail.

Interestingly, installing python3-dev on Ubuntu 18.04 includes this file and everything works.

Might this be a bug in the 20.04 version?

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oraoming

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answered 2 Years ago trousransla · Accepted Answer

You can try the following:

sudo updatedb

locate Python.h

Output:

/usr/include/python2.7/Python.h

/usr/include/python3.5m/Python.h

Then set

export CPATH=/usr/include/python3.5m:$CPATH

export LD_LIBRARY_PATH=/usr/lib:$LD_LIBRARY_PATH