Python报错“distutils.errors.DistutilsError”原因与解决方法

今天在Linux下用python安装模板，当执行命令“pip install tinyscript”的时候，走到中间的时候，结果中途给我来了一个错误，简单如下：

distutils.errors.DistutilsError: Download error for https://files.pythonhosted.org/packages/16/45/81b5262c0efc08882bdf183b788e6d28e3d684863990996d8b60967d48da/pytest_runner-5.2-py2.py3-none-any.whl
#sha256=5534b08b133ef9a5e2c22c7886a8f8508c95bb0b0bdc6cc13214f269c3c70d51: [Errno 101] Network is unreachable
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-rqe8mm05/cairocffi/

上面大概的意思，就是由于“[Errno 101]网络无法访问”才造成了DistutilsError。

具体报错如下：

Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "/usr/lib/python3.7/urllib/request.py", line 1317, in do_open
        encode_chunked=req.has_header('Transfer-encoding'))
      File "/usr/lib/python3.7/http/client.py", line 1244, in request
        self._send_request(method, url, body, headers, encode_chunked)
      File "/usr/lib/python3.7/http/client.py", line 1290, in _send_request
        self.endheaders(body, encode_chunked=encode_chunked)
      File "/usr/lib/python3.7/http/client.py", line 1239, in endheaders
        self._send_output(message_body, encode_chunked=encode_chunked)
      File "/usr/lib/python3.7/http/client.py", line 1026, in _send_output
        self.send(msg)
      File "/usr/lib/python3.7/http/client.py", line 966, in send
        self.connect()
      File "/usr/lib/python3/dist-packages/setuptools/ssl_support.py", line 174, in connect
        (self.host, self.port), getattr(self, 'source_address', None)
      File "/usr/lib/python3.7/socket.py", line 727, in create_connection
        raise err
      File "/usr/lib/python3.7/socket.py", line 716, in create_connection
        sock.connect(sa)
    OSError: [Errno 101] Network is unreachable
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 766, in open_url
        return open_with_auth(url, self.opener)
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 961, in _socket_timeout
        return func(*args, **kwargs)
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 1080, in open_with_auth
        fp = opener(request)
      File "/usr/lib/python3.7/urllib/request.py", line 525, in open
        response = self._open(req, data)
      File "/usr/lib/python3.7/urllib/request.py", line 543, in _open
        '_open', req)
      File "/usr/lib/python3.7/urllib/request.py", line 503, in _call_chain
        result = func(*args)
      File "/usr/lib/python3/dist-packages/setuptools/ssl_support.py", line 161, in https_open
        lambda host, **kw: VerifyingHTTPSConn(host, self.ca_bundle, **kw), req
      File "/usr/lib/python3.7/urllib/request.py", line 1319, in do_open
        raise URLError(err)
    urllib.error.URLError: <urlopen error [Errno 101] Network is unreachable>
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-rqe8mm05/cairocffi/setup.py", line 13, in <module>
        'cairocffi/ffi_build.py:ffi_pixbuf']
      File "/usr/lib/python3/dist-packages/setuptools/__init__.py", line 144, in setup
        _install_setup_requires(attrs)
      File "/usr/lib/python3/dist-packages/setuptools/__init__.py", line 139, in _install_setup_requires
        dist.fetch_build_eggs(dist.setup_requires)
      File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 719, in fetch_build_eggs
        replace_conflicting=True,
      File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 782, in resolve
        replace_conflicting=replace_conflicting
      File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 1065, in best_match
        return self.obtain(req, installer)
      File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 1077, in obtain
        return installer(requirement)
      File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 786, in fetch_build_egg
        return cmd.easy_install(req)
      File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 692, in easy_install
        not self.always_copy, self.local_index
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 655, in fetch_distribution
        dist = find(requirement)
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 635, in find
        loc = self.download(dist.location, tmpdir)
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 579, in download
        found = self._download_url(scheme.group(1), spec, tmpdir)
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 824, in _download_url
        return self._attempt_download(url, filename)
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 830, in _attempt_download
        headers = self._download_to(url, filename)
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 729, in _download_to
        fp = self.open_url(url)
      File "/usr/lib/python3/dist-packages/setuptools/package_index.py", line 780, in open_url
        % (url, v.reason))
    distutils.errors.DistutilsError: Download error for https://files.pythonhosted.org/packages/16/45/81b5262c0efc08882bdf183b788e6d28e3d684863990996d8b60967d48da/pytest_runner-5.2-py2.py3-none-any.whl#sha256=5534b08b133ef9a5e2c22c7886a8f8508c95bb0b0bdc6cc13214f269c3c70d51: [Errno 101] Network is unreachable
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-rqe8mm05/cairocffi/

原因：

由于“distutils.errors.DistutilsError”这个错误的原因很多，具体还要根据后面的报错来看，毕竟不同的错误原因，解决方法是不一样的。