Python 2.7 : InsecurePlatformWarning error.

This is not a common error and can be solve it easy like any python issue.
The result of this error can be shown like into the next example:

c:\python27\lib\site-packages\pip\_vendor\requests\packages\urllib3\util\ssl_.py:318: 
SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension 
to TLS is not available on this platform. This may cause the server to present an incorrect TLS 
certificate, which can cause validation failures. You can upgrade to a newer version of Python to
 solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html
#snimissingwarning.
  SNIMissingWarning
c:\python27\lib\site-packages\pip\_vendor\requests\packages\urllib3\util\ssl_.py:122: 
InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from
 configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade 
to a newer version of Python to solve this. For more information, see https://urllib3.readthe
docs.io/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning

The simple way to test this python error is to install these python modules:

pip install urllib3 
pip install requests

This last python module named requests to come with:

Successfully installed certifi-2017.11.5 chardet-3.0.4 idna-2.6 requests-2.18.4

What is this python module named requests?
Is a security the requests python module inject pyopenssl into urllib3.

C:\Python27>python
Python 2.7 (r27:82525, Jul  4 2010, 07:43:08) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> help()

Welcome to Python 2.7!  This is the online help utility.

If this is your first time using Python, you should definitely check out
the tutorial on the Internet at http://docs.python.org/tutorial/.

Enter the name of any module, keyword, or topic to get help on writing
Python programs and using Python modules.  To quit this help utility and
return to the interpreter, just type "quit".

To get a list of available modules, keywords, or topics, type "modules",
"keywords", or "topics".  Each module also comes with a one-line summary
of what it does; to list the modules whose summaries contain a given word
such as "spam", type "modules spam".

help> modules requests

Here is a list of matching modules.  Enter any module name to get more help.

pip._vendor.cachecontrol.controller - The httplib2 algorithms ported for use with requests.
pip._vendor.requests - Requests HTTP library
pip._vendor.requests.adapters - requests.adapters
pip._vendor.requests.api - requests.api
pip._vendor.requests.auth - requests.auth
pip._vendor.requests.certs - requests.certs
pip._vendor.requests.compat - requests.compat
pip._vendor.requests.cookies - requests.cookies
pip._vendor.requests.exceptions - requests.exceptions
pip._vendor.requests.hooks - requests.hooks
pip._vendor.requests.models - requests.models
pip._vendor.requests.packages
pip._vendor.requests.packages.chardet
pip._vendor.requests.packages.chardet.big5freq
pip._vendor.requests.packages.chardet.big5prober
pip._vendor.requests.packages.chardet.chardetect - Script which takes one or more file paths 
and reports on their detected
pip._vendor.requests.packages.chardet.chardistribution
pip._vendor.requests.packages.chardet.charsetgroupprober
pip._vendor.requests.packages.chardet.charsetprober
pip._vendor.requests.packages.chardet.codingstatemachine
pip._vendor.requests.packages.chardet.compat
pip._vendor.requests.packages.chardet.constants
pip._vendor.requests.packages.chardet.cp949prober
pip._vendor.requests.packages.chardet.escprober
pip._vendor.requests.packages.chardet.escsm
pip._vendor.requests.packages.chardet.eucjpprober
pip._vendor.requests.packages.chardet.euckrfreq
pip._vendor.requests.packages.chardet.euckrprober
pip._vendor.requests.packages.chardet.euctwfreq
pip._vendor.requests.packages.chardet.euctwprober
pip._vendor.requests.packages.chardet.gb2312freq
pip._vendor.requests.packages.chardet.gb2312prober
pip._vendor.requests.packages.chardet.hebrewprober
pip._vendor.requests.packages.chardet.jisfreq
pip._vendor.requests.packages.chardet.jpcntx
pip._vendor.requests.packages.chardet.langbulgarianmodel
pip._vendor.requests.packages.chardet.langcyrillicmodel
pip._vendor.requests.packages.chardet.langgreekmodel
pip._vendor.requests.packages.chardet.langhebrewmodel
pip._vendor.requests.packages.chardet.langhungarianmodel
pip._vendor.requests.packages.chardet.langthaimodel
pip._vendor.requests.packages.chardet.latin1prober
pip._vendor.requests.packages.chardet.mbcharsetprober
pip._vendor.requests.packages.chardet.mbcsgroupprober
pip._vendor.requests.packages.chardet.mbcssm
pip._vendor.requests.packages.chardet.sbcharsetprober
pip._vendor.requests.packages.chardet.sbcsgroupprober
pip._vendor.requests.packages.chardet.sjisprober
pip._vendor.requests.packages.chardet.universaldetector
pip._vendor.requests.packages.chardet.utf8prober
pip._vendor.requests.packages.urllib3 - urllib3 - Thread-safe connection pooling and re-using.
pip._vendor.requests.packages.urllib3._collections
pip._vendor.requests.packages.urllib3.connection
pip._vendor.requests.packages.urllib3.connectionpool
pip._vendor.requests.packages.urllib3.contrib
pip._vendor.requests.packages.urllib3.contrib.appengine
pip._vendor.requests.packages.urllib3.contrib.ntlmpool - NTLM authenticating pool, 
contributed by erikcederstran
pip._vendor.requests.packages.urllib3.contrib.pyopenssl
pip._vendor.requests.packages.urllib3.contrib.socks - SOCKS support for urllib3
pip._vendor.requests.packages.urllib3.exceptions
pip._vendor.requests.packages.urllib3.fields
pip._vendor.requests.packages.urllib3.filepost
pip._vendor.requests.packages.urllib3.packages
pip._vendor.requests.packages.urllib3.packages.ordered_dict
pip._vendor.requests.packages.urllib3.packages.six - Utilities for writing code that runs on 
Python 2 and 3
pip._vendor.requests.packages.urllib3.packages.ssl_match_hostname
pip._vendor.requests.packages.urllib3.packages.ssl_match_hostname._implementation - The match_hostname() 
function from Python 3.3.3, essential when using SSL.
pip._vendor.requests.packages.urllib3.poolmanager
pip._vendor.requests.packages.urllib3.request
pip._vendor.requests.packages.urllib3.response
pip._vendor.requests.packages.urllib3.util
pip._vendor.requests.packages.urllib3.util.connection
pip._vendor.requests.packages.urllib3.util.request
pip._vendor.requests.packages.urllib3.util.response
pip._vendor.requests.packages.urllib3.util.retry
pip._vendor.requests.packages.urllib3.util.ssl_
pip._vendor.requests.packages.urllib3.util.timeout
pip._vendor.requests.packages.urllib3.util.url
pip._vendor.requests.sessions - requests.session
pip._vendor.requests.status_codes
pip._vendor.requests.structures - requests.structures
pip._vendor.requests.utils - requests.utils
requests - Requests HTTP Library
requests.__version__
requests._internal_utils - requests._internal_utils
requests.adapters - requests.adapters
requests.api - requests.api
requests.auth - requests.auth
requests.certs - requests.certs
requests.compat - requests.compat
requests.cookies - requests.cookies
requests.exceptions - requests.exceptions
requests.help - Module containing bug report helper(s).
requests.hooks - requests.hooks
requests.models - requests.models
requests.packages
requests.sessions - requests.session
requests.status_codes
requests.structures - requests.structures
requests.utils - requests.utils
help>
You are now leaving help and returning to the Python interpreter.
If you want to ask for help on a particular object directly from the
interpreter, you can type "help(object)".  Executing "help('string')"
has the same effect as typing a particular string at the help> prompt.
>>>
...