Use \helpref{wxSingleChoiceDialog::ShowModal}{wxsinglechoicedialogshowmodal} to show the dialog.
-\pythonnote{For Python the two parametes {\tt n} and {\tt choices} are collapsed
+\pythonnote{For Python the two parameters {\tt n} and {\tt choices} are collapsed
into a single parameter {\tt choices} which is expected to be a Python
list of strings.}