diff --git a/mx-linux/mx-21.sh b/mx-linux/mx-21.sh
index fc75c35..55273e1 100644
--- a/mx-linux/mx-21.sh
+++ b/mx-linux/mx-21.sh
@@ -36,15 +36,7 @@ echo 'deb [arch=amd64 signed-by=/usr/share/keyrings/signal-desktop-keyring.gpg]
 apt-get update $1
 apt-get upgrade $1
 apt-get install $1 mkusb
-#<-- install python 3.9
-apt-get install $1 build-essential liblzma-dev zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libsqlite3-dev libreadline-dev libffi-dev curl libbz2-dev python-tk python3-tk tk-dev
-wget https://www.python.org/ftp/python/3.9.8/Python-3.9.8.tgz
-tar -xf Python-3.9.8.tgz
-cd Python-3.9.8
-./configure --prefix=/usr --enable-shared --with-ensurepip=yes --enable-optimizations 
-make -j 2
-make install
-#-->
+#python 3.9.2 already installed in MX21
 #<-- cpupower
 apt-get install $1 cpupower-gui
 apt-get install $1 gir1.2-handy-1
@@ -86,7 +78,7 @@ wget http://ftp.de.debian.org/debian/pool/main/e/ecryptfs-utils/libecryptfs1_111
 apt-get install $1 ./ecryptfs-utils_111-5_amd64.deb ./libecryptfs1_111-5_amd64.deb
 # wifi mac random address config
 cp ./30-randomize-mac-address.conf /etc/NetworkManager/conf.d
-# apt-get install $1 baobab    // already installed in MX21
+# baobab already installed in MX21
 apt-get -t experimental install $1 josm
 apt-get install $1 qgis qgis-plugin-grass qgis-server 
 #<-- nodejs