wx_gui.py

import wx

class MyFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None,
            pos=wx.DefaultPosition, size=wx.Size(450,100),
            style=wx.MINIMIZE_BOX | wx.SYSTEM_MENU | wx.CAPTION |
            wx.CLOSE_BOX | wx.CLIP_CHILDREN,
            title="PyVirtualAssistant")
        panel = wx.Panel(self)
        my_sizer = wx.BoxSizer(wx.VERTICAL)
        lbl =wx.StaticText(panel,
            label="Hello! I'm PyVirtualAssistant. How can I help you?")
        my_sizer.Add(lbl,0,wx.ALL,5)
        self.txt = wx.TextCtrl(panel, style=wx.TE_PROCESS_ENTER, size=(400,30))
        self.txt.SetFocus()
        self.txt.Bind(wx.EVT_TEXT_ENTER, self.OnEnter)
        my_sizer.Add(self.txt, 0 , wx.ALL, 5)
        panel.SetSizer(my_sizer)
        self.Show()
    
    def OnEnter(self, event):
        input = self.txt.GetValue()
        input = input.lower()
        print("It Worked!")

if __name__ == "__main__":
    app = wx.App(True)
    frame = MyFrame()
    app.MainLoop()