Ubuntu – fatal error :“python.h” no file or directory

compilingg++python

While looking for a solution for the Hungarian problem, I found this GitHub link.

I went through the readme.md file and I performed everything described there. After copying hungarian.so into my working directory, when I tried to compile hungarian.cpp using make hungarian, I got this output:

anupam@JAZZ:~/Python/hungarian-master$ make hungarian
g++     hungarian.cpp   -o hungarian
hungarian.cpp:7:20: fatal error: Python.h: No such file or directory
 #include "Python.h"
                    ^
compilation terminated.
make: *** [hungarian] Error 1

I found this related question on Stack Overflow, but the answer didn't work for me.

I am very new to GitHub I don't know how to add modules on g++. Can someone help me with that, and what to do next?

Best Answer

  • After looking at https://github.com/hrldcpr/hungarian/blob/master/hungarian.cpp, it seems that you need both:

    #include "Python.h"
    #include "numpy/arrayobject.h"
    

    So install the following packages:

    sudo apt-get install libpython2.7-dev python-numpy
    

    To identify the missing packages (the ones providing the headers), look at packages.ubuntu.com.

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