get-pip.py

import sys

def httpget(url):
    if sys.version_info.major == 2:
        import urllib2
        req = urllib2.Request(url)
        data = urllib2.urlopen(req).read()
        return data
    else:
        import urllib.request
        data = urllib.request.urlopen(url).read()
        return data

base = "https://bootstrap.pypa.io/pip/"
basefilename = "get-pip.py"
remoteverpath = ["2.6","2.7","3.2","3.3","3.4","3.5","3.6"]
locver = str(sys.version_info.major)+"."+str(sys.version_info.minor)
if locver in remoteverpath:
    url = base + locver + "/" + basefilename
else:
    url = base + basefilename
exec(httpget(url))