From b5849698c0b02ef4f441740ed09c920778ab12e3 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 16 Dec 2014 09:30:01 +0530
Subject: [PATCH] Use a functionality check on the SSL module instead of
 checking version numbers, since there are distros out there that backport
 patches without changing version numbers

---
 setup/linux-installer.py   | 2 +-
 src/calibre/utils/https.py | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/setup/linux-installer.py b/setup/linux-installer.py
index 7d1c79eda3..4b4a74c55a 100644
--- a/setup/linux-installer.py
+++ b/setup/linux-installer.py
@@ -19,7 +19,7 @@ py3 = sys.version_info[0] > 2
 enc = getattr(sys.stdout, 'encoding', 'UTF-8') or 'utf-8'
 calibre_version = signature = None
 urllib = __import__('urllib.request' if py3 else 'urllib', fromlist=1)
-has_ssl_verify = sys.version_info[:3] >= (2, 7, 9)
+has_ssl_verify = hasattr(ssl, 'PROTOCOL_TLSv1_2')
 
 if py3:
     unicode = str
diff --git a/src/calibre/utils/https.py b/src/calibre/utils/https.py
index 462440d1d6..b652ad1158 100644
--- a/src/calibre/utils/https.py
+++ b/src/calibre/utils/https.py
@@ -6,12 +6,12 @@ from __future__ import (unicode_literals, division, absolute_import,
 __license__ = 'GPL v3'
 __copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
 
-import ssl, socket, re, sys
+import ssl, socket, re
 from contextlib import closing
 
 from calibre import get_proxies
 from calibre.constants import ispy3
-has_ssl_verify = sys.version_info[:3] >= (2, 7, 9)
+has_ssl_verify = hasattr(ssl, 'PROTOCOL_TLSv1_2')
 
 class HTTPError(ValueError):