[wxPython] wxComboBox <> combobox :(

[JZ]

Is there any way to fill wxComboBox with a dictionary, not a list? 

All normal combobox widgets in HTML or Flash return id, not label. I would 
like to display 'A', 'B' and return 'a' or 'b' similar to html: 

<select>
<option value='a'>A</option>
<option value='b'>B</option>
</select>

wxWidget seems to work only like:

<select>
<option value='A'>A</option>
<option value='B'>B</option>
</select>

--
JZ