7

I'm trying to install 'pyskein' from the Python package index (sudo easy_install3 skein), but the installation fails with this error:

src/threefish.c:23:20: fatal error: Python.h: No such file or directory
compilation terminated.
error: Setup script exited with error: command 'gcc' failed with exit status 1

I've already installed the build-essential package

7

Your system is missing the Python headers. To fix this, run

sudo apt-get install python-dev

or

sudo apt-get install python3-dev

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