beremiz

MQTT: Fix warning when subscribing first topic from python.
py2compat
16 months ago, Edouard Tisserant
44890ce0ac93
MQTT: Fix warning when subscribing first topic from python.

Ensure that message callback is already set before subscribing a topic from python.
<?xml version='1.0' encoding='utf-8'?>
<BeremizRoot xmlns:xsd="http://www.w3.org/2001/XMLSchema" URI_location="LOCAL://">
<TargetType/>
<Libraries Enable_SVGHMI_Library="true"/>
</BeremizRoot>