bpo-25910: Link redirections in docs (#1933)

Fixes some redirection links in docs.

15 files changed, 28 insertions, 31 deletions

diff --git a/Doc/library/ast.rst b/Doc/library/ast.rst
index bda46f4..b7f610b 100644
--- a/Doc/library/ast.rst
+++ b/Doc/library/ast.rst
@@ -261,5 +261,5 @@ and classes for traversing abstract syntax trees:
 
 .. seealso::
 
-    `Green Tree Snakes <https://greentreesnakes.readthedocs.org/>`_, an external documentation resource, has good
+    `Green Tree Snakes <https://greentreesnakes.readthedocs.io/>`_, an external documentation resource, has good
     details on working with Python ASTs.
diff --git a/Doc/library/colorsys.rst b/Doc/library/colorsys.rst
index c33f531..1360c7c 100644
--- a/Doc/library/colorsys.rst
+++ b/Doc/library/colorsys.rst
@@ -21,7 +21,7 @@ spaces, the coordinates are all between 0 and 1.
 .. seealso::
 
    More information about color spaces can be found at
-   http://www.poynton.com/ColorFAQ.html and
+   http://poynton.ca/ColorFAQ.html and
    https://www.cambridgeincolour.com/tutorials/color-spaces.htm.
 
 The :mod:`colorsys` module defines the following functions:
diff --git a/Doc/library/hashlib.rst b/Doc/library/hashlib.rst
index d491691..eda18ad 100644
--- a/Doc/library/hashlib.rst
+++ b/Doc/library/hashlib.rst
@@ -562,7 +562,7 @@ on the hash function used in digital signatures.
     by the signer.
 
     (`NIST SP-800-106 "Randomized Hashing for Digital Signatures"
-    <http://csrc.nist.gov/publications/nistpubs/800-106/NIST-SP-800-106.pdf>`_)
+    <https://csrc.nist.gov/publications/detail/sp/800-106/final>`_)
 
 In BLAKE2 the salt is processed as a one-time input to the hash function during
 initialization, rather than as an input to each compression function.
@@ -728,7 +728,7 @@ Domain Dedication 1.0 Universal:
    https://blake2.net
       Official BLAKE2 website.
 
-   http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
+   https://csrc.nist.gov/csrc/media/publications/fips/180/2/archive/2002-08-01/documents/fips180-2.pdf
       The FIPS 180-2 publication on Secure Hash Algorithms.
 
    https://en.wikipedia.org/wiki/Cryptographic_hash_function#Cryptographic_hash_algorithms
diff --git a/Doc/library/mailbox.rst b/Doc/library/mailbox.rst
index 48d76a8..d901ad2 100644
--- a/Doc/library/mailbox.rst
+++ b/Doc/library/mailbox.rst
@@ -620,7 +620,7 @@ Supported mailbox formats are Maildir, mbox, MH, Babyl, and MMDF.
    `nmh - Message Handling System <http://www.nongnu.org/nmh/>`_
       Home page of :program:`nmh`, an updated version of the original :program:`mh`.
 
-   `MH & nmh: Email for Users & Programmers <http://rand-mh.sourceforge.net/book/>`_
+   `MH & nmh: Email for Users & Programmers <https://rand-mh.sourceforge.io/book/>`_
       A GPL-licensed book on :program:`mh` and :program:`nmh`, with some information
       on the mailbox format.
 
diff --git a/Doc/library/math.rst b/Doc/library/math.rst
index 9e49463..55eb41b 100644
--- a/Doc/library/math.rst
+++ b/Doc/library/math.rst
@@ -461,7 +461,7 @@ Constants
    Tau is a circle constant equal to 2\ *π*, the ratio of a circle's circumference to
    its radius. To learn more about Tau, check out Vi Hart's video `Pi is (still)
    Wrong <https://www.youtube.com/watch?v=jG7vhMMXagQ>`_, and start celebrating
-   `Tau day <http://tauday.com/>`_ by eating twice as much pie!
+   `Tau day <https://tauday.com/>`_ by eating twice as much pie!
 
    .. versionadded:: 3.6
 
diff --git a/Doc/library/plistlib.rst b/Doc/library/plistlib.rst
index 7d306a2..20c086c 100644
--- a/Doc/library/plistlib.rst
+++ b/Doc/library/plistlib.rst
@@ -38,7 +38,7 @@ or :class:`datetime.datetime` objects.
 
 .. seealso::
 
-   `PList manual page <https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man5/plist.5.html>`_
+   `PList manual page <https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/PropertyLists/>`_
       Apple's documentation of the file format.
 
 
diff --git a/Doc/library/ssl.rst b/Doc/library/ssl.rst
index b40d958..4c44ffa 100644
--- a/Doc/library/ssl.rst
+++ b/Doc/library/ssl.rst
@@ -868,9 +868,9 @@ Constants
 .. data:: HAS_NPN
 
    Whether the OpenSSL library has built-in support for *Next Protocol
-   Negotiation* as described in the `NPN draft specification
-   <https://tools.ietf.org/html/draft-agl-tls-nextprotoneg>`_. When true,
-   you can use the :meth:`SSLContext.set_npn_protocols` method to advertise
+   Negotiation* as described in the `Application Layer Protocol
+   Negotiation <https://en.wikipedia.org/wiki/Application-Layer_Protocol_Negotiation>`_.
+   When true, you can use the :meth:`SSLContext.set_npn_protocols` method to advertise
    which protocols you want to support.
 
    .. versionadded:: 3.3
@@ -1374,7 +1374,7 @@ to speed up repeated connections from the same clients.
    The *capath* string, if present, is
    the path to a directory containing several CA certificates in PEM format,
    following an `OpenSSL specific layout
-   <https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_load_verify_locations.html>`_.
+   <https://www.openssl.org/docs/manmaster/man3/SSL_CTX_load_verify_locations.html>`_.
 
    The *cadata* object, if present, is either an ASCII string of one or more
    PEM-encoded certificates or a :term:`bytes-like object` of DER-encoded
@@ -1501,8 +1501,8 @@ to speed up repeated connections from the same clients.
    Specify which protocols the socket should advertise during the SSL/TLS
    handshake. It should be a list of strings, like ``['http/1.1', 'spdy/2']``,
    ordered by preference. The selection of a protocol will happen during the
-   handshake, and will play out according to the `NPN draft specification
-   <https://tools.ietf.org/html/draft-agl-tls-nextprotoneg>`_. After a
+   handshake, and will play out according to the `Application Layer Protocol Negotiation
+   <https://en.wikipedia.org/wiki/Application-Layer_Protocol_Negotiation>`_. After a
    successful handshake, the :meth:`SSLSocket.selected_npn_protocol` method will
    return the agreed-upon protocol.
 
@@ -1663,8 +1663,7 @@ to speed up repeated connections from the same clients.
 .. method:: SSLContext.session_stats()
 
    Get statistics about the SSL sessions created or managed by this context.
-   A dictionary is returned which maps the names of each `piece of information
-   <https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_sess_number.html>`_ to their
+   A dictionary is returned which maps the names of each `piece of information <https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_sess_number.html>`_ to their
    numeric values.  For example, here is the total number of hits and misses
    in the session cache since the context was created::
 
@@ -2365,7 +2364,7 @@ enabled when negotiating a SSL session is possible through the
 :meth:`SSLContext.set_ciphers` method.  Starting from Python 3.2.3, the
 ssl module disables certain weak ciphers by default, but you may want
 to further restrict the cipher choice. Be sure to read OpenSSL's documentation
-about the `cipher list format <https://www.openssl.org/docs/apps/ciphers.html#CIPHER-LIST-FORMAT>`_.
+about the `cipher list format <https://www.openssl.org/docs/manmaster/man1/ciphers.html#CIPHER-LIST-FORMAT>`_.
 If you want to check which ciphers are enabled by a given cipher list, use
 :meth:`SSLContext.get_ciphers` or the ``openssl ciphers`` command on your
 system.
@@ -2393,10 +2392,10 @@ successful call of :func:`~ssl.RAND_add`, :func:`~ssl.RAND_bytes` or
    `RFC 1422: Privacy Enhancement for Internet Electronic Mail: Part II: Certificate-Based Key Management <https://www.ietf.org/rfc/rfc1422>`_
        Steve Kent
 
-   `RFC 4086: Randomness Requirements for Security <http://datatracker.ietf.org/doc/rfc4086/>`_
+   `RFC 4086: Randomness Requirements for Security <https://datatracker.ietf.org/doc/rfc4086/>`_
        Donald E., Jeffrey I. Schiller
 
-   `RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile <http://datatracker.ietf.org/doc/rfc5280/>`_
+   `RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile <https://datatracker.ietf.org/doc/rfc5280/>`_
        D. Cooper
 
    `RFC 5246: The Transport Layer Security (TLS) Protocol Version 1.2 <https://tools.ietf.org/html/rfc5246>`_
diff --git a/Doc/library/statistics.rst b/Doc/library/statistics.rst
index 2aa778c..bc38178 100644
--- a/Doc/library/statistics.rst
+++ b/Doc/library/statistics.rst
@@ -257,8 +257,6 @@ However, for reading convenience, most of the examples show sorted sequences.
       * "Statistics for the Behavioral Sciences", Frederick J Gravetter and
         Larry B Wallnau (8th Edition).
 
-      * Calculating the `median <https://www.ualberta.ca/~opscan/median.html>`_.
-
       * The `SSMEDIAN
         <https://help.gnome.org/users/gnumeric/stable/gnumeric.html#gnumeric-function-SSMEDIAN>`_
         function in the Gnome Gnumeric spreadsheet, including `this discussion
diff --git a/Doc/library/tkinter.rst b/Doc/library/tkinter.rst
index f222fe6..6d90e43 100644
--- a/Doc/library/tkinter.rst
+++ b/Doc/library/tkinter.rst
@@ -35,7 +35,7 @@ this should open a window demonstrating a simple Tk interface.
    `Tcl/Tk manual <https://www.tcl.tk/man/tcl8.5/>`_
       Official manual for the latest tcl/tk version.
 
-   `Programming Python <http://learning-python.com/books/about-pp4e.html>`_
+   `Programming Python <http://learning-python.com/about-pp4e.html>`_
       Book by Mark Lutz, has excellent coverage of Tkinter.
 
    `Modern Tkinter for Busy Python Developers <https://www.amazon.com/Modern-Tkinter-Python-Developers-ebook/dp/B0071QDNLO/>`_
diff --git a/Doc/library/tkinter.ttk.rst b/Doc/library/tkinter.ttk.rst
index 927f7f3..debbc81 100644
--- a/Doc/library/tkinter.ttk.rst
+++ b/Doc/library/tkinter.ttk.rst
@@ -26,7 +26,7 @@ appearance.
 
 .. seealso::
 
-   `Tk Widget Styling Support <https://www.tcl.tk/cgi-bin/tct/tip/48>`_
+   `Tk Widget Styling Support <https://core.tcl.tk/tips/doc/trunk/tip/48.md>`_
       A document introducing theming support for Tk
 
 
diff --git a/Doc/library/unittest.mock-examples.rst b/Doc/library/unittest.mock-examples.rst
index 05f33740..5bf3d57 100644
--- a/Doc/library/unittest.mock-examples.rst
+++ b/Doc/library/unittest.mock-examples.rst
@@ -1008,7 +1008,7 @@ subclass.
     True
 
 Sometimes this is inconvenient. For example, `one user
-<https://code.google.com/p/mock/issues/detail?id=105>`_ is subclassing mock to
+<https://code.google.com/archive/p/mock/issues/105>`_ is subclassing mock to
 created a `Twisted adaptor
 <https://twistedmatrix.com/documents/11.0.0/api/twisted.python.components.html>`_.
 Having this applied to attributes too actually causes errors.
@@ -1251,7 +1251,7 @@ With a bit of tweaking you could have the comparison function raise the
 :exc:`AssertionError` directly and provide a more useful failure message.
 
 As of version 1.5, the Python testing library `PyHamcrest
-<https://pyhamcrest.readthedocs.org/>`_ provides similar functionality,
+<https://pyhamcrest.readthedocs.io/>`_ provides similar functionality,
 that may be useful here, in the form of its equality matcher
 (`hamcrest.library.integration.match_equality
-<https://pyhamcrest.readthedocs.org/en/release-1.8/integration/#module-hamcrest.library.integration.match_equality>`_).
+<https://pyhamcrest.readthedocs.io/en/release-1.8/integration/#module-hamcrest.library.integration.match_equality>`_).
diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst
index 5a10f95..413d8b6 100644
--- a/Doc/library/urllib.request.rst
+++ b/Doc/library/urllib.request.rst
@@ -62,7 +62,7 @@ The :mod:`urllib.request` module defines the following functions:
 
    * :meth:`~urllib.response.addinfourl.info` --- return the meta-information of the page, such as headers,
      in the form of an :func:`email.message_from_string` instance (see
-     `Quick Reference to HTTP Headers <https://www.cs.tut.fi/~jkorpela/http.html>`_)
+     `Quick Reference to HTTP Headers <http://jkorpela.fi/http.html>`_)
 
    * :meth:`~urllib.response.addinfourl.getcode` -- return the HTTP status code of the response.
 
diff --git a/Doc/library/venv.rst b/Doc/library/venv.rst
index 17c80c8..6707be7 100644
--- a/Doc/library/venv.rst
+++ b/Doc/library/venv.rst
@@ -458,4 +458,4 @@ subclass which installs setuptools and pip into a created virtual environment::
 
 
 This script is also available for download `online
-<https://gist.github.com/4673395>`_.
+<https://gist.github.com/vsajip/4673395>`_.
diff --git a/Doc/library/wsgiref.rst b/Doc/library/wsgiref.rst
index a1d4469..b0ef346 100644
--- a/Doc/library/wsgiref.rst
+++ b/Doc/library/wsgiref.rst
@@ -26,8 +26,8 @@ for implementing WSGI servers, a demo HTTP server that serves WSGI applications,
 and a validation tool that checks WSGI servers and applications for conformance
 to the WSGI specification (:pep:`3333`).
 
-See https://wsgi.readthedocs.org/ for more information about WSGI, and links to
-tutorials and other resources.
+See `wsgi.readthedocs.io <https://wsgi.readthedocs.io/>`_ for more information about WSGI, and links
+to tutorials and other resources.
 
 .. XXX If you're just trying to write a web application...
 
diff --git a/Doc/library/xml.dom.rst b/Doc/library/xml.dom.rst
index de334af..18519a7 100644
--- a/Doc/library/xml.dom.rst
+++ b/Doc/library/xml.dom.rst
@@ -67,13 +67,13 @@ implementations are free to support the strict mapping from IDL).  See section
 
 .. seealso::
 
-   `Document Object Model (DOM) Level 2 Specification <https://www.w3.org/TR/DOM-Level-2-Core/>`_
+   `Document Object Model (DOM) Level 2 Specification <https://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/>`_
       The W3C recommendation upon which the Python DOM API is based.
 
    `Document Object Model (DOM) Level 1 Specification <https://www.w3.org/TR/REC-DOM-Level-1/>`_
       The W3C recommendation for the DOM supported by :mod:`xml.dom.minidom`.
 
-   `Python Language Mapping Specification <http://www.omg.org/spec/PYTH/1.2/PDF>`_
+   `Python Language Mapping Specification <http://www.omg.org/cgi-bin/doc?formal/02-11-05.pdf>`_
       This specifies the mapping from OMG IDL to Python.