HYTOS

import wx

import os

class Example(wx.Frame):

    def __init__(self, parent, title):

        super(Example, self).__init__(parent, title=title, size=(260, 180))

        self.InitUI()

        self.Centre()

        self.Show()     

    def InitUI(self):

        panel = wx.Panel(self)

        menubar = wx.MenuBar()

        filem = wx.Menu()

        openm = filem.Append(wx.ID_OPEN, "O&pen\tAlt-O", "Open a file")

        self.Bind(wx.EVT_MENU, self.OnOpen, openm)

        exitm = filem.Append(wx.ID_EXIT, "E&xit\tAlt-X", "Close window and exit program.")

        self.Bind(wx.EVT_MENU, self.OnClose, exitm)

        editm = wx.Menu()

        helpm = wx.Menu()

        menubar.Append(filem, '&File')

        menubar.Append(editm, '&Edit')

        menubar.Append(helpm, '&Help')

        self.SetMenuBar(menubar)

        hbox = wx.BoxSizer(wx.HORIZONTAL)

        flexgridsizer = wx.FlexGridSizer(2, 1, 0, 0)

        languages = ['C', 'C++', 'Python', 'Java', 'Perl'] 

        self.combo = wx.ComboBox(panel, choices = languages) 

        textctrl = wx.TextCtrl(panel, style=wx.TE_MULTILINE)

        flexgridsizer.AddMany([(self.combo, 0, wx.EXPAND), (textctrl, 1, wx.EXPAND)])

        flexgridsizer.AddGrowableRow(1, 0)

        flexgridsizer.AddGrowableCol(0, 0)

        hbox.Add(flexgridsizer, proportion=1, flag=wx.ALL|wx.EXPAND, border=5)

        panel.SetSizer(hbox)

        #panel.SetSizer(flexgridsizer)

    def OnOpen(self, event):

        wildcard = "Image files (*.png,*.bmp)|*.png;*.bmp||"

        fdlg = wx.FileDialog(None, "Choose a file", os.getcwd(), "", wildcard, wx.FD_OPEN)

        if fdlg.ShowModal() == wx.ID_OK:

            print(fdlg.GetPath())

        fdlg.Destroy()

    def OnClose(self, event):

        dlg = wx.MessageDialog(self,

        "Do you really want to close this program?",

        "Confrim Exit", wx.OK|wx.CANCEL|wx.ICON_QUESTION)

        result = dlg.ShowModal()

        dlg.Destroy()

        if result == wx.ID_OK:

            self.Destroy()

if __name__ == '__main__':

    app = wx.App()

    Example(None, title='')

    app.MainLoop()