setup.py checking prerequisite example

setup.py

import os
from setuptools import setup, find_packages

from mtml.about import __version__, __description__


try:
    import CPLEX
except ImportError as e:
    raise EnvironmentError("""You must install CPLEX manually first.
https://www.google.com/aclk?sa=l&ai=DChcSEwiW64S6nNriAhUStpYKHWwyCUAYABAAGgJ0bA&sig=AOD64_3Omi880wx8P-AGPbCVFVAHi2GIcg&q=&ved=2ahUKEwi-qf25nNriAhWIw4sBHaJPCtMQ0Qx6BAgXEAE&adurl=
""")


def requirements():
    reqfile = 'requirements.txt'
    with open(os.path.join(os.path.dirname(__file__), reqfile)) as f:
        return f.read().splitlines()


setup(name='mtml',
      version=__version__,
      description=__description__,
      packages=find_packages(exclude=[]),
      entry_points='''
        [console_scripts]
        mtml = mtml.cli:main
      ''',
      include_package_data=True,
      install_requires=requirements())

# setup.py 있는 폴더로 가서 아래 명령어 실행하면, 설치 과정 볼수있음.
pip install .