ignore abort-upgrade

autoscripts/preinst-pycentral-clean

 # make sure python-central files are removed before new package is installed
-if [ -f /var/lib/pycentral/#PACKAGE#.pkgremove ]
-then
-	pycentral pkgremove #PACKAGE#
-	rm -f /var/lib/pycentral/#PACKAGE#.pkgremove
-fi
+case "$1" in
+    install|upgrade)
+	if [ -f /var/lib/pycentral/#PACKAGE#.pkgremove ]
+	then
+		pycentral pkgremove #PACKAGE#
+		rm -f /var/lib/pycentral/#PACKAGE#.pkgremove
+	fi
+esac