diff -r dabad70db1bf -r 22b969b409b0 tests/svghmi_v2/py_ext_0@py_ext/pyfile.xml
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/svghmi_v2/py_ext_0@py_ext/pyfile.xml	Mon Aug 10 11:30:06 2020 +0200
@@ -0,0 +1,30 @@
+<?xml version='1.0' encoding='utf-8'?>
+<PyFile xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+  <variables>
+    <variable name="SomePLCglobal" type="HMI_STRING" initial="'blaf'" onchange="MyOnChangeFunc"/>
+  </variables>
+  <globals>
+    <xhtml:p><![CDATA[
+
+def MyOnChangeFunc(changed_var_name):
+    print changed_var_name + ": " + getattr(PLCGlobals, changed_var_name)
+
+]]></xhtml:p>
+  </globals>
+  <init>
+    <xhtml:p><![CDATA[
+]]></xhtml:p>
+  </init>
+  <cleanup>
+    <xhtml:p><![CDATA[
+]]></xhtml:p>
+  </cleanup>
+  <start>
+    <xhtml:p><![CDATA[
+]]></xhtml:p>
+  </start>
+  <stop>
+    <xhtml:p><![CDATA[
+]]></xhtml:p>
+  </stop>
+</PyFile>