python setup.py install n

如何解决python setup.py install n

我在尝试安装 setuptools_scm-6.0.1 时遇到此错误，我的目标是安装 Pyinstaller。我不断收到依赖错误，但无法解决这个问题。有任何想法吗？是在封闭的网络上，我必须在实验室没有互联网连接的情况下下载软件包。

    C:\Users\img_user\Desktop\dist\setuptools_scm-6.0.1>python setup.py install
    C:\Users\img_user\Desktop\dist\setuptools_scm-6.0.1\src
    <pkg_resources.WorkingSet object at 0x000001DE6AA1E390>
    Traceback (most recent call last):
      File "setup.py",line 52,in <module>
        setuptools.setup(**scm_config())
      File "C:\python37\lib\site-packages\setuptools\__init__.py",line 129,in setup
        return distutils.core.setup(**attrs)
      File "C:\python37\lib\distutils\core.py",line 108,in setup
        _    setup_distribution = dist = klass(attrs)
      File "C:\python37\lib\site-packages\setuptools\dist.py",line 372,in __init__
        _      distribution.__init__(self,attrs)
      File "C:\python37\lib\distutils\dist.py",line 292,in __init__
        self.finalize_options()
      File "C:\python37\lib\site-packages\setuptools\dist.py",line 527,in finalize_options
       ep.require(installer=self.fetch_build_egg)
      File "C:\python37\lib\site-packages\pkg_resources\__init__.py",line 2346,in require
       items = working_set.resolve(reqs,env,installer,extras=self.extras)
      File "C:\python37\lib\site-packages\pkg_resources\__init__.py",line 783,in resolve
        raise VersionConflict(dist,req).with_context(dependent_req)
    pkg_resources.VersionConflict: (setuptools 39.0.1 (c:\python37\lib\site-packages),Requirement.parse('setuptools>=45'))'