Disable for RTD previews

Author: StanFromIreland

_templates/page.html

@@ -2,6 +2,7 @@
 
 {% block extrahead %}
 {{ super() }}
+{% if not READTHEDOCS %}
 <script defer data-domain="devguide.python.org" src="https://analytics.python.org/js/script.outbound-links.js"></script>
-<script>window.plausible = window.plausible || function() { (window.plausible.q = window.plausible.q || []).push(arguments) }</script>
+{% endif %}
 {% endblock %}

conf.py

@@ -1,4 +1,5 @@
 import json
+import os
 from urllib.request import urlopen
 
 extensions = [
@@ -51,6 +52,10 @@
 # Set to '' to prevent appending "documentation" to the site title
 html_title = ""
 
+html_context = {
+    "READTHEDOCS": bool(os.getenv("READTHEDOCS")),
+}
+
 linkcheck_allowed_redirects = {
     # Edit page
     r"https://docs.google.com/document/d/.*/": r"https://docs.google.com/document/d/.*/edit",  # noqa: E501