--- a/Doc/tools/templates/layout.html
+++ b/Doc/tools/templates/layout.html
@@ -50,7 +50,7 @@
 {% endblock %}
 {% block extrahead %}
     <link rel="shortcut icon" type="image/png" href="{{ pathto('_static/py.png', 1) }}" />
-    <link rel="canonical" href="https://docs.python.org/3/{{pagename}}.html" />
+    <link rel="canonical" href="file:///usr/share/doc/python3.7/html/{{pagename}}.html" />
     {% if builder != "htmlhelp" %}
     {% if not embedded %}<script type="text/javascript" src="{{ pathto('_static/copybutton.js', 1) }}"></script>{% endif %}
     {% if switchers is defined and not embedded %}<script type="text/javascript" src="{{ pathto('_static/switchers.js', 1) }}"></script>{% endif %}
--- a/Lib/idlelib/help.html
+++ b/Lib/idlelib/help.html
@@ -27,7 +27,7 @@
     <link rel="copyright" title="Copyright" href="../copyright.html" />
     <link rel="next" title="Other Graphical User Interface Packages" href="othergui.html" />
     <link rel="prev" title="tkinter.scrolledtext — Scrolled Text Widget" href="tkinter.scrolledtext.html" />
-    <link rel="canonical" href="https://docs.python.org/3/library/idle.html" />
+    <link rel="canonical" href="file:///usr/share/doc/python3.7/html/library/idle.html" />