安装jumpserver，提示错误

Collecting python-keycloak-client==0.1.3
  Downloading https://pypi.tuna.tsinghua.edu.cn/packages/17/0c/931050f9daf0ed619434780375b53d77d5037873ec64c69d7582ea46438f/python-keycloak-client-0.1.3.tar.gz (8.9 kB)
    ERROR: Command errored out with exit status 1:
     command: /opt/py3/bin/python3.6 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-3aan3g8a/python-keycloak-client/setup.py'"'"'; __file__='"'"'/tmp/pip-install-3aan3g8a/python-keycloak-client/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'
'"'"', '"'"'
'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-3aan3g8a/python-keycloak-client/pip-egg-info
         cwd: /tmp/pip-install-3aan3g8a/python-keycloak-client/
    Complete output (37 lines):
    WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7f57ad935390>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/pytest-runner/
    WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7f57ad9354e0>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/pytest-runner/
    WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7f57ad935550>, 'Connection to pypi.org timed out. (connect timeout=15)')': /simple/pytest-runner/
    WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)",)': /simple/pytest-runner/
    WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7f57ad98bda0>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/pytest-runner/
    ERROR: Could not find a version that satisfies the requirement pytest-runner (from versions: none)
    ERROR: No matching distribution found for pytest-runner
    Traceback (most recent call last):
      File "/opt/py3/lib64/python3.6/site-packages/setuptools/installer.py", line 128, in fetch_build_egg
        subprocess.check_call(cmd)
      File "/usr/lib64/python3.6/subprocess.py", line 311, in check_call
        raise CalledProcessError(retcode, cmd)
    subprocess.CalledProcessError: Command '['/opt/py3/bin/python3.6', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpgoaasukl', '--quiet', 'pytest-runner']' returned non-zero exit status 1.
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-3aan3g8a/python-keycloak-client/setup.py", line 44, in <module>
        classifiers=[]
      File "/opt/py3/lib64/python3.6/site-packages/setuptools/__init__.py", line 143, in setup
        _install_setup_requires(attrs)
      File "/opt/py3/lib64/python3.6/site-packages/setuptools/__init__.py", line 138, in _install_setup_requires
        dist.fetch_build_eggs(dist.setup_requires)
      File "/opt/py3/lib64/python3.6/site-packages/setuptools/dist.py", line 698, in fetch_build_eggs
        replace_conflicting=True,
      File "/opt/py3/lib64/python3.6/site-packages/pkg_resources/__init__.py", line 783, in resolve
        replace_conflicting=replace_conflicting
      File "/opt/py3/lib64/python3.6/site-packages/pkg_resources/__init__.py", line 1066, in best_match
        return self.obtain(req, installer)
      File "/opt/py3/lib64/python3.6/site-packages/pkg_resources/__init__.py", line 1078, in obtain
        return installer(requirement)
      File "/opt/py3/lib64/python3.6/site-packages/setuptools/dist.py", line 754, in fetch_build_egg
        return fetch_build_egg(self, req)
      File "/opt/py3/lib64/python3.6/site-packages/setuptools/installer.py", line 130, in fetch_build_egg
        raise DistutilsError(str(e))
    distutils.errors.DistutilsError: Command '['/opt/py3/bin/python3.6', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpgoaasukl', '--quiet', 'pytest-runner']' returned non-zero exit status 1.
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.