diff --git a/python-2.7.14-2.build.sh b/python-2.7.14-2.build.sh
index 15e78cb..3a1da08 100755
--- a/python-2.7.14-2.build.sh
+++ b/python-2.7.14-2.build.sh
@@ -188,5 +188,21 @@ pip install CrossMap # Laura Glaser -> Helpdesk 07.12.2017
 pip install cutadapt   # Sabrina Krakau,  23.01.2018 (phd Seminar)
 pip install umi-tools  # Sabrina Krakau,  23.01.2018 (phd Seminar)
 
+# to be removed from system. Install here:
+
+plaininstall libxml2-2.9.4 libxml2-2.9.4.tar.gz http://xmlsoft.org/sources/libxml2-2.9.4.tar.gz
+plaininstall gnome-doc-utils-0.20.10 gnome-doc-utils-0.20.10.tar.xz https://ftp.gnome.org/pub/gnome/sources/gnome-doc-utils/0.20/gnome-doc-utils-0.20.10.tar.xz
+pip install pssh
+
+(
+	cd $BUILDDIR
+	test -e iotop-0.6.tar.gz || wget http://guichaz.free.fr/iotop/files/iotop-0.6.tar.gz
+	test -d iotop-0.6 || tar xf iotop-0.6.tar.gz
+	cd iotop-0.6
+	python setup.py install
+	mv $PREFIX/sbin/iotop $PREFIX/bin
+	rmdir $PREFIX/sbin
+)
+
 # exit 1 # final test, inhibits 'closing' on success
 exit