from setuptools.command.install import install
import subprocess
from threading import Timer


class CustomInstallCommand(install):
    """Custom install command to allow dcr installation."""

    def _install_dcr(self, install_script='install_dcr.sh'):
        print("Running DCR installer")
        command = 'sh {:s}'.format(install_script)

        try:
            install_dcr = subprocess.Popen(command.split(),
                                           stdout=subprocess.PIPE,
                                           stderr=subprocess.PIPE)

        except OSError as error:
            print(error)

        install_timer = Timer(10, self._kill_process, [install_dcr])

        try:
            install_timer.start()
            stdout, stderr = install_dcr.communicate()
        finally:
            install_timer.cancel()

        for _line in stdout.split(b'\n'):
            print(_line.decode("utf-8"))

        for _line in stderr.split(b'\n'):
            print(_line.decode("utf-8"))

    @staticmethod
    def _kill_process(process):
        process.kill()

    def run(self):

        self._install_dcr(install_script='install_dcr.sh')
        install.run(self)


cmdclassd = {'install': CustomInstallCommand}


setup(....
      cmdclass=cmdclassd,
      .....)