Index: general/prog/python-dependencies/markdown.xml
===================================================================
--- general/prog/python-dependencies/markdown.xml	(revision 4b8c5140717e35b849589ed5ee1266ff8b5606ba)
+++ general/prog/python-dependencies/markdown.xml	(revision 313e38af6647e27f3fc90504f998a85fb0d54399)
@@ -70,5 +70,5 @@
       <para role="optional">
         <xref linkend="pytest"/>,
-        <ulink url="https://pypi.org/project/pyyaml/">pyyaml</ulink>, and
+        <xref linkend="PyYAML"/>, and
         <ulink url="https://pypi.org/project/coverage/">coverage</ulink>
       </para>
@@ -97,5 +97,5 @@
 <screen remap="test"><userinput>python3 -m venv --system-site-packages testenv &amp;&amp;
 source testenv/bin/activate                    &amp;&amp;
-pip3 install coverage pyyaml                   &amp;&amp;
+pip3 install coverage                          &amp;&amp;
 python3 /usr/bin/pytest --ignore=tests/test_syntax/extensions/test_md_in_html.py<!-- no && because of a possible error -->
 deactivate</userinput></screen>
Index: general/prog/python-modules.xml
===================================================================
--- general/prog/python-modules.xml	(revision 4b8c5140717e35b849589ed5ee1266ff8b5606ba)
+++ general/prog/python-modules.xml	(revision 313e38af6647e27f3fc90504f998a85fb0d54399)
@@ -212,4 +212,9 @@
       <listitem>
         <para>
+          <xref linkend="PyYAML"/>
+        </para>
+      </listitem>
+      <listitem>
+        <para>
           <xref linkend="recommonmark"/>
         </para>
@@ -340,4 +345,7 @@
 
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+    href="python-modules/pyyaml.xml"/>
+
+  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
     href="python-modules/recommonmark.xml"/>
 
Index: general/prog/python-modules/pyyaml.xml
===================================================================
--- general/prog/python-modules/pyyaml.xml	(revision 313e38af6647e27f3fc90504f998a85fb0d54399)
+++ general/prog/python-modules/pyyaml.xml	(revision 313e38af6647e27f3fc90504f998a85fb0d54399)
@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+   <!ENTITY % general-entities SYSTEM "../../../general.ent">
+  %general-entities;
+
+  <!ENTITY PyYAML-download-http "https://files.pythonhosted.org/packages/source/P/PyYAML/PyYAML-&PyYAML-version;.tar.gz">
+  <!ENTITY PyYAML-download-ftp  " ">
+  <!ENTITY PyYAML-md5sum        "&PyYAML-md5sum;">
+  <!ENTITY PyYAML-size          "124 KB">
+  <!ENTITY PyYAML-buildsize     "8.0 MB">
+  <!ENTITY PyYAML-time          "less than 0.1 SBU">
+]>
+
+  <!-- Begin PyYAML -->
+  <sect2 id="PyYAML" xreflabel="PyYAML-&PyYAML-version;">
+
+    <title>PyYAML-&PyYAML-version;</title>
+
+    <indexterm zone="PyYAML">
+      <primary sortas="a-PyYAML">PyYAML</primary>
+    </indexterm>
+
+    <sect3 role="package">
+      <title>Introduction to PyYAML Module</title>
+
+      <para>
+        <application>PyYAML</application> is a <application>Python</application>
+        module that implements the next generation YAML parser and emitter.
+      </para>
+
+      &lfs121_checked;
+
+      <bridgehead renderas="sect4">Package Information</bridgehead>
+      <itemizedlist spacing="compact">
+        <listitem>
+          <para>
+            Download (HTTP): <ulink url="&PyYAML-download-http;"/>
+          </para>
+        </listitem>
+        <listitem>
+          <para>
+            Download (FTP): <ulink url="&PyYAML-download-ftp;"/>
+          </para>
+        </listitem>
+        <listitem>
+          <para>
+            Download MD5 sum: &PyYAML-md5sum;
+          </para>
+        </listitem>
+        <listitem>
+          <para>
+            Download size: &PyYAML-size;
+          </para>
+        </listitem>
+        <listitem>
+          <para>
+            Estimated disk space required: &PyYAML-buildsize;
+          </para>
+        </listitem>
+        <listitem>
+          <para>
+            Estimated build time: &PyYAML-time;
+          </para>
+        </listitem>
+      </itemizedlist>
+
+      <bridgehead renderas="sect4">PyYAML Dependencies</bridgehead>
+
+      <bridgehead renderas="sect5">Required</bridgehead>
+      <para role="required">
+        <xref linkend="cython"/> and
+        <xref linkend="libyaml"/>
+      </para>
+
+    </sect3>
+
+    <sect3 role="installation">
+      <title>Installation of PyYAML</title>
+
+      <para>
+        First, make a change so the package will build with
+        <xref linkend="cython"/>:
+      </para>
+
+<screen role="pre"><userinput>sed -i '/Cython/s/ import build_ext/.old_build_ext import old_build_ext/' setup.py</userinput></screen>
+
+      <para>
+        Next, build PyYAML with the following command:
+      </para>
+
+&build-wheel;
+
+      <para>
+        Now, install the module as the &root; user:
+      </para>
+
+<screen role="root"><userinput>&install-wheel; PyYAML</userinput></screen>
+
+    </sect3>
+
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+      href="../../../xincludes/pip3-cmd-explain.xml"/>
+
+    <sect3 role="content">
+      <title>Contents</title>
+
+      <segmentedlist>
+        <segtitle>Installed Programs</segtitle>
+        <segtitle>Installed Libraries</segtitle>
+        <segtitle>Installed Directories</segtitle>
+
+        <seglistitem>
+          <seg>
+            None
+          </seg>
+          <seg>
+            None
+          </seg>
+          <seg>
+            /usr/lib/python&python3-majorver;/site-packages/PyYAML-&yaml-version;.dist-info
+          </seg>
+        </seglistitem>
+      </segmentedlist>
+
+    </sect3>
+
+  </sect2>
