Use https:// URLs when referring to python.org hosts.
diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst
index 77c050b..8970a66 100644
--- a/Doc/tutorial/classes.rst
+++ b/Doc/tutorial/classes.rst
@@ -600,7 +600,7 @@
 without affecting the precedence order of its parents).  Taken together, these
 properties make it possible to design reliable and extensible classes with
 multiple inheritance.  For more detail, see
-http://www.python.org/download/releases/2.3/mro/.
+https://www.python.org/download/releases/2.3/mro/.
 
 
 .. _tut-private:
diff --git a/Doc/tutorial/index.rst b/Doc/tutorial/index.rst
index df10385..c14b1d6 100644
--- a/Doc/tutorial/index.rst
+++ b/Doc/tutorial/index.rst
@@ -12,7 +12,7 @@
 
 The Python interpreter and the extensive standard library are freely available
 in source or binary form for all major platforms from the Python Web site,
-http://www.python.org/, and may be freely distributed. The same site also
+https://www.python.org/, and may be freely distributed. The same site also
 contains distributions of and pointers to many free third party Python modules,
 programs and tools, and additional documentation.
 
diff --git a/Doc/tutorial/whatnow.rst b/Doc/tutorial/whatnow.rst
index 48ff5c8..1ff4ae3 100644
--- a/Doc/tutorial/whatnow.rst
+++ b/Doc/tutorial/whatnow.rst
@@ -30,15 +30,15 @@
 
 More Python resources:
 
-* http://www.python.org:  The major Python Web site.  It contains code,
+* https://www.python.org:  The major Python Web site.  It contains code,
   documentation, and pointers to Python-related pages around the Web.  This Web
   site is mirrored in various places around the world, such as Europe, Japan, and
   Australia; a mirror may be faster than the main site, depending on your
   geographical location.
 
-* http://docs.python.org:  Fast access to Python's  documentation.
+* https://docs.python.org:  Fast access to Python's  documentation.
 
-* http://pypi.python.org: The Python Package Index, previously also nicknamed
+* https://pypi.python.org: The Python Package Index, previously also nicknamed
   the Cheese Shop, is an index of user-created Python modules that are available
   for download.  Once you begin releasing code, you can register it here so that
   others can find it.
@@ -56,7 +56,7 @@
 answering) questions, suggesting new features, and announcing new modules.
 Before posting, be sure to check the list of :ref:`Frequently Asked Questions
 <faq-index>` (also called the FAQ).  Mailing list
-archives are available at http://mail.python.org/pipermail/. The FAQ answers
+archives are available at https://mail.python.org/pipermail/. The FAQ answers
 many of the questions that come up again and again, and may already contain the
 solution for your problem.