[root@kong ~]# pip install py_zipkin
Collecting py_zipkin
 Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, u'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:579)'),)': /packages/ef/87/e8fc3f124d491e635023a71f256769691037fc1451e5f5fb73846d6322d8/py_zipkin-0.11.0-py2.py3-none-any.whl
...省略
 Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, u'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:579)'),)': /packages/ef/87/e8fc3f124d491e635023a71f256769691037fc1451e5f5fb73846d6322d8/py_zipkin-0.11.0-py2.py3-none-any.whl
Could not install packages due to an EnvironmentError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Max retries exceeded with url: /packages/ef/87/e8fc3f124d491e635023a71f256769691037fc1451e5f5fb73846d6322d8/py_zipkin-0.11.0-py2.py3-none-any.whl (Caused by SSLError(SSLError(1, u'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:579)'),))
[root@kong ~]#

[root@kong ~]# pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org py-zipkin
Collecting py-zipkin
 Downloading https://files.pythonhosted.org/packages/ef/87/e8fc3f124d491e635023a71f256769691037fc1451e5f5fb73846d6322d8/py_zipkin-0.11.0-py2.py3-none-any.whl
Collecting thriftpy (from py-zipkin)
...省略
 gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/python2.7 -c thriftpy/transport/cybase.c -o build/temp.linux-x86_64-2.7/thriftpy/transport/cybase.o
 thriftpy/transport/cybase.c:13:20: fatal error: Python.h: No such file or directory
  #include "Python.h"

[root@kong ~]# pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org py-zipkin
Collecting py-zipkin
 Downloading https://files.pythonhosted.org/packages/ef/87/e8fc3f124d491e635023a71f256769691037fc1451e5f5fb73846d6322d8/py_zipkin-0.11.0-py2.py3-none-any.whl
Requirement already satisfied: six in /usr/lib/python2.7/site-packages (from py-zipkin) (1.11.0)
Collecting thriftpy (from py-zipkin)
 Downloading https://files.pythonhosted.org/packages/f4/19/cca118cf7d2087310dbc8bd70dc7df0c1320f2652873a93d06d7ba356d4a/thriftpy-0.3.9.tar.gz (208kB)
  100% |################################| 215kB 2.0MB/s 
Requirement already satisfied: ply<4.0,>=3.4 in /usr/lib/python2.7/site-packages (from thriftpy->py-zipkin) (3.11)
Building wheels for collected packages: thriftpy
 Running setup.py bdist_wheel for thriftpy ... done
 Stored in directory: /root/.cache/pip/wheels/64/ff/0b/00a7ab5df78f8360908e34744eb78c2c537a327a295da5c260
Successfully built thriftpy
Installing collected packages: thriftpy, py-zipkin
Successfully installed py-zipkin-0.11.0 thriftpy-0.3.9
[root@kong ~]#