Commented out safety check to prevent deadlock in wxEvaluator, since wx Mainloop is not anymore in main thread. That safety check actually leads to having wx code running outside of MainLoop
<?xml version="1.0"?>
<!-- generated by wxGlade 0.7.2 on Mon Jun 5 14:18:29 2017 -->
<application class="" encoding="UTF-8" for_version="2.8" header_extension=".h" indent_amount="4" indent_symbol="space" is_template="0" language="python" name="" option="0" overwrite="0" path="..py.py" source_extension=".cpp" top_window="HMIFrame" use_gettext="0" use_new_namespace="1">
<object class="Class_HMIFrame" name="HMIFrame" base="EditFrame">
<style>wxDEFAULT_FRAME_STYLE</style>
<title>HMIFrame</title>
<object class="wxBoxSizer" name="sizer_1" base="EditBoxSizer">
<orient>wxVERTICAL</orient>
<object class="sizeritem">
<border>0</border>
<option>0</option>
<object class="wxSpinCtrl" name="spin_ctrl_1" base="EditSpinCtrl">
<range>0, 10000</range>
</object>
</object>
<object class="sizeritem">
<border>0</border>
<option>0</option>
<object class="wxCheckBox" name="checkbox_1" base="EditCheckBox">
<label>checkbox_1</label>
</object>
</object>
<object class="sizeritem">
<border>0</border>
<option>0</option>
<object class="wxStaticText" name="label_1" base="EditStaticText">
<attribute>1</attribute>
<label>GUI changed!</label>
</object>
</object>
</object>
</object>
</application>