@@ -11,7 +11,7 @@ API Reference
       and other APIs, makes the API consistent across different Python versions,
       and is hence recommended over using ``distutils`` directly.
 
-.. _New and changed setup.py arguments in setuptools: https://setuptools.readthedocs.io/en/latest/setuptools.html#new-and-changed-setup-keywords
+.. _New and changed setup.py arguments in setuptools: https://web.archive.org/web/20210614192516/https://setuptools.pypa.io/en/stable/userguide/keywords.html
 
 .. include:: ./_setuptools_disclaimer.rst
 
 
@@ -670,7 +670,7 @@ A summary of available frameworks is maintained by Paul Boddie at
 https://wiki.python.org/moin/WebProgramming\ .
 
 Cameron Laird maintains a useful set of pages about Python web technologies at
-http://phaseit.net/claird/comp.lang.python/web_python.
+https://web.archive.org/web/20210224183619/http://phaseit.net/claird/comp.lang.python/web_python.
 
 
 How can I mimic CGI form submission (METHOD=POST)?
 
@@ -56,7 +56,7 @@ Are there tools to help find bugs or perform static analysis?
 
 Yes.
 
-`Pylint <https://www.pylint.org/>`_ and
+`Pylint <https://pylint.pycqa.org/en/latest/index.html>`_ and
 `Pyflakes <https://github.com/PyCQA/pyflakes>`_ do basic checking that will
 help you catch bugs sooner.
 
 
@@ -4,13 +4,13 @@
   HOWTO Fetch Internet Resources Using The urllib Package
 ***********************************************************
 
-:Author: `Michael Foord <http://www.voidspace.org.uk/python/index.shtml>`_
+:Author: `Michael Foord <https://agileabstractions.com/>`_
 
 .. note::
 
     There is a French translation of an earlier revision of this
     HOWTO, available at `urllib2 - Le Manuel manquant
-    <http://www.voidspace.org.uk/python/articles/urllib2_francais.shtml>`_.
+    <https://web.archive.org/web/20200910051922/http://www.voidspace.org.uk/python/articles/urllib2_francais.shtml>`_.
 
 
 
@@ -22,7 +22,7 @@ Introduction
     You may also find useful the following article on fetching web resources
     with Python:
 
-    * `Basic Authentication <http://www.voidspace.org.uk/python/articles/authentication.shtml>`_
+    * `Basic Authentication <https://web.archive.org/web/20201215133350/http://www.voidspace.org.uk/python/articles/authentication.shtml>`_
 
         A tutorial on *Basic Authentication*, with examples in Python.
 
 
@@ -214,7 +214,7 @@ It is possible that ``pip`` does not get installed by default. One potential fix
     python -m ensurepip --default-pip
 
 There are also additional resources for `installing pip.
-<https://packaging.python.org/tutorials/installing-packages/#install-pip-setuptools-and-wheel>`__
+<https://packaging.python.org/en/latest/tutorials/installing-packages/#ensure-pip-setuptools-and-wheel-are-up-to-date>`__
 
 
 Installing binary extensions
 
@@ -2584,7 +2584,7 @@ Notes:
        many other calendar systems.
 
 .. [#] See R. H. van Gent's `guide to the mathematics of the ISO 8601 calendar
-       <https://www.staff.science.uu.nl/~gent0113/calendar/isocalendar.htm>`_
+       <https://web.archive.org/web/20220531051136/https://webspace.science.uu.nl/~gent0113/calendar/isocalendar.htm>`_
        for a good explanation.
 
 .. [#] Passing ``datetime.strptime('Feb 29', '%b %d')`` will fail since ``1900`` is not a leap year.
@@ -627,7 +627,7 @@ function:
     hash function used in the protocol summarily stops this type of attack.
 
     (`The Skein Hash Function Family
-    <http://www.skein-hash.info/sites/default/files/skein1.3.pdf>`_,
+    <https://www.schneier.com/wp-content/uploads/2016/02/skein.pdf>`_,
     p. 21)
 
 BLAKE2 can be personalized by passing bytes to the *person* argument::
 
@@ -44,4 +44,4 @@ This module defines four dictionaries, :data:`html5`,
 
 .. rubric:: Footnotes
 
-.. [#] See https://html.spec.whatwg.org/multipage/syntax.html#named-character-references
+.. [#] See https://html.spec.whatwg.org/multipage/named-characters.html#named-character-references
@@ -136,7 +136,7 @@ Inspect the resolved entry point::
 The ``group`` and ``name`` are arbitrary values defined by the package author
 and usually a client will wish to resolve all entry points for a particular
 group.  Read `the setuptools docs
-<https://setuptools.readthedocs.io/en/latest/setuptools.html#dynamic-discovery-of-services-and-plugins>`_
+<https://setuptools.pypa.io/en/latest/userguide/entry_point.html>`_
 for more information on entry points, their definition, and usage.
 
 *Compatibility Note*
 
@@ -559,7 +559,7 @@ Special functions
 
    The :func:`erf` function can be used to compute traditional statistical
    functions such as the `cumulative standard normal distribution
-   <https://en.wikipedia.org/wiki/Normal_distribution#Cumulative_distribution_function>`_::
+   <https://en.wikipedia.org/wiki/Normal_distribution#Cumulative_distribution_functions>`_::
 
      def phi(x):
          'Cumulative distribution function for the standard normal distribution'
Original file line number	Diff line number	Diff line change
@@ -44,4 +44,4 @@ This module defines four dictionaries, :data:`html5`,
44	44
45	45	.. rubric:: Footnotes
46	46
47		- .. [#] See https://html.spec.whatwg.org/multipage/syntax.html#named-character-references
	47	+ .. [#] See https://html.spec.whatwg.org/multipage/named-characters.html#named-character-references