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