python: supress "failed to check new pip version" or "a new pip version is available" warnings

The non-text change during freeze is approved by bdubbs.

1 files changed, 14 insertions, 2 deletions

diff --git a/chapter08/python.xml b/chapter08/python.xml
index da1f75cdc..0f50bf6ef 100644
--- a/chapter08/python.xml
+++ b/chapter08/python.xml
@@ -102,12 +102,24 @@
     <systemitem class='username'>root</systemitem> user.  The main reason
     of this recommendation is for avoiding a conflict with the system
     package manager (<command>dpkg</command> for example), but LFS does not
-    have a system-wide package manager so this is not a problem.  If desired,
-    suppress this warning by running the following commands:</para>
+    have a system-wide package manager so this is not a problem.  And,
+    <command>pip3</command> will attempt to check for a new version of
+    itself whenever it's run.  As domain name resolving is not configured
+    yet in LFS chroot environment, it will fail to check for a new version
+    and produce a warning.  Once we boot the LFS system and set up network
+    connection, it will then produce a warning telling the user to update it
+    from a pre-built wheel on PyPI if any new version is available.  But LFS
+    consider <command>pip3</command> a part of Python 3 so it should not be
+    updated separately, and an update from a pre-built wheel will deviate
+    from our purpose to build a Linux system from source code.  So the
+    warning for a new <command>pip3</command> version should be ignored as
+    well. If desired, suppress these warnings by running the following
+    commands:</para>
 
  <screen><userinput remap="install">cat &gt; /etc/pip.conf &lt;&lt; EOF
 [global]
 root-user-action = ignore
+disable-pip-version-check = true
 EOF
 </userinput></screen>
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