Pip3 wheel install failure - gcc error building ruamel.yaml.clib

[khakhilev]

Since #4 was fixed pip3 wheel installations goes further but fails with some python compilation error building ruamel.yaml.clib
There's a line in log which I thought suggested "wheel package" could help:
Using legacy 'setup.py install' for docopt, since package 'wheel' is not installed.
But the error is the same wheel package installed.

I attach 2 log files
no wheel log.txt - error as it is in installation
wheel log.txt - error if I run pip3 install wheel in cygwin
no wheel log.txt
wheel log.txt

[nijave]

  _ruamel_yaml.c:4:10: fatal error: Python.h: No such file or directory
      4 | #include "Python.h"
        |          ^~~~~~~~~~

means it's missing python-devel package (python header files)