python.h 在安装了 python-dev 的 Ubuntu 18 上丢失

Question

Trying to get fHDHR working Ubuntu 18. During the install I get this error:

include/python3.8 -c src/gevent/libev/corecext.c -o build/temp.linux-x86_64-3.8/src/gevent/libev/corecext.o
  src/gevent/libev/corecext.c:95:10: fatal error: Python.h: No such file or directory
   #include "Python.h"
            ^~~~~~~~~~
  compilation terminated.
  error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

  ----------------------------------------
  Failed building wheel for gevent

Most answers I find tell me I need python-dev installed but it already is (and updated). In this post it was recommended to sudo pip install mmh3 which I tried but it also failed as unable to find python.h

Any idea what I am missing on my system?

Answer 1

You need to install python3.x-dev as explained here . For me this resolved the issue.

Since from the error line we can see that you are running python3.8 , so for your case you would need to do:

sudo apt-get install python3.8-dev

Answer 2

You can try to install python3-dev.

apt install python3-dev 

since you are using python3

Answer 3

When you are facing this error just do these install before installation package.

For python 2.x use:

sudo apt-get install python-dev

For python 2.7 use:

sudo apt-get install libffi-dev

For python 3.x use:

sudo apt-get install python3-dev

or for a specific version of Python 3, replace x with the minor version in

sudo apt-get install python3.x-dev

Answer 4

Look at your current python version, ie, python --version , perhaps you're on python 2.x, if True:

You have to switch on Python 3

update-alternatives --install /usr/bin/python python /usr/bin/python3.x 2