erp5: Disable promises for Python3 until ERP5 has been ported.

stack/erp5/buildout.hash.cfg

@@ -86,7 +86,7 @@ md5sum = 0ac4b74436f554cd677f19275d18d880
 
 [template-zope]
 filename = instance-zope.cfg.in
-md5sum = e24c7f5f6ba2beb31736cb3cf3d60768
+md5sum = 06265195ca29805696873b6f8a57a5fd
 
 [template-balancer]
 filename = instance-balancer.cfg.in

stack/erp5/instance-zope.cfg.in

@@ -358,11 +358,17 @@ hash-existing-files =
   ${buildout:directory}/software_release/buildout.cfg
 
 [{{ section("promise-" ~ name) }}]
+{% if six.PY3 -%}
+# Disable the promise in Python 3. ERP5 is not compatible with Python 3 yet, so
+# the promise would always fail.
+recipe =
+{% else -%}
 <= monitor-promise-base
 promise = check_socket_listening
 name = {{ name }}.py
 config-host = {{ ipv4 }}
 config-port = {{ port }}
+{% endif -%}
 
 {% if use_ipv6 -%}
 [{{ zope_tunnel_section_name }}]