def __init__(self, parent, *args, **kwargs):
    self.some_text = wx.StaticText(panel, wx.ID_ANY, label=
        'Awaiting MySQL Data', style=wx.ALIGN_CENTER)

def someFunction(self):
    mysql_data = databasemodel.returnData()
self.some_text.SetLabel(mysql_data)
wxPython, Установить значение StaticText()