Someone

def openmyfile():    try:        import Tkinter, tkFileDialog        try:            root = Tkinter.Tk()            filetoopen = tkFileDialog.Open(root, filetypes=[('AMESim files', '*.ame'),('All files', '*')])            sname = filetoopen.show()        except Tkinter.TclError:            sname = raw_input('Name of the system: ')    except ImportError:        sname = raw_input('Name of the system: ')        return sname.strip()