diff --git a/scripts/install_python2.sh b/scripts/install_python2.sh
index f4cf75a19..b12eccf58 100755
--- a/scripts/install_python2.sh
+++ b/scripts/install_python2.sh
@@ -16,9 +16,12 @@
 export DEBIAN_FRONTEND=noninteractive
 ARCH=$(dpkg --print-architecture)
 
-# Older version http://launchpadlibrarian.net/651276954/virtualenv_20.19.0+ds-1_all.deb
-# unfortunately drags in newer 20.23+ version of python3-virtualenv, preventing Python 2.
-# So let's try pip: (which installs to /usr/local/bin)
+# 2023-05-19: #3573 -> PR #3582: Ubuntu 23.10's virtualenv 20.23 no longer
+# supports Python 2.  Older version from Ubuntu 23.04 seemed plausible...
+# http://launchpadlibrarian.net/651276954/virtualenv_20.19.0+ds-1_all.deb
+# ...but drags in newer 20.23+ version of python3-virtualenv, leaving us
+# with /usr/bin/virtualenv 20.23 once again, i.e. preventing Python 2.
+# Whereas pip (which installs /usr/local/bin/virtualvenv) at least works:
 apt -y install python3-pip
 pip install virtualenv==20.21.1 --break-system-packages
 #apt -y install virtualenv