Use six for Python 2 compatibility

--HG--
branch : feature/issue-229
extra : source : 7b1997ececc5772798ce33a0f8e77387cb55a977

1 files changed, 8 insertions, 13 deletions

diff --git a/setuptools/ssl_support.py b/setuptools/ssl_support.py
index 7b5f429f..b574f4b9 100644
--- a/setuptools/ssl_support.py
+++ b/setuptools/ssl_support.py
@@ -3,9 +3,10 @@ import socket
 import atexit
 import re
 
+from six.moves import urllib, http_client
+
 import pkg_resources
 from pkg_resources import ResolutionError, ExtractionError
-from setuptools.compat import urllib2
 
 try:
     import ssl
@@ -27,17 +28,11 @@ cert_paths = """
 """.strip().split()
 
 
-HTTPSHandler = HTTPSConnection = object
-
-for what, where in (
-    ('HTTPSHandler', ['urllib2','urllib.request']),
-    ('HTTPSConnection', ['httplib', 'http.client']),
-):
-    for module in where:
-        try:
-            exec("from %s import %s" % (module, what))
-        except ImportError:
-            pass
+try:
+    HTTPSHandler = urllib.request.HTTPSHandler
+    HTTPSConnection = http_client.HTTPSConnection
+except AttributeError:
+    HTTPSHandler = HTTPSConnection = object
 
 is_available = ssl is not None and object not in (HTTPSHandler, HTTPSConnection)
 
@@ -191,7 +186,7 @@ class VerifyingHTTPSConn(HTTPSConnection):
 
 def opener_for(ca_bundle=None):
     """Get a urlopen() replacement that uses ca_bundle for verification"""
-    return urllib2.build_opener(
+    return urllib.request.build_opener(
         VerifyingHTTPSHandler(ca_bundle or find_ca_bundle())
     ).open