software/erp5testnode: use python3

software/erp5testnode/software.cfg

@@ -12,6 +12,7 @@ extends =
   ../../component/pwgen/buildout.cfg
   ../../component/apache/buildout.cfg
   ../../stack/monitor/buildout.cfg
+  ../../component/defaults.cfg
 
 parts =
   slapos-command
@@ -22,6 +23,9 @@ parts =
   git
   apache
 
+[python]
+part = python3
+
 [eggs]
 recipe = zc.recipe.egg
 eggs =
@@ -58,3 +62,8 @@ zope.cachedescriptors = 4.3.1
 zope.event = 4.4
 zope.schema = 4.9.3
 slapos.tool.nosqltester = 0.0.4.dev-r45972
+
+[versions:python3]
+z3c.etestbrowser = 3.0.1
+zope.deferredimport = 4.3.1
+zope.proxy = 4.4.0