recipe-496868.py 文件源码

def insureWxApp():
    """Create an instance of PySimpleApp if there is no app already.
    This is required by wxPython before creating any GUI objects.
    """
    global _wxApp
    _wxApp = wx.GetApp()
    if not _wxApp:
        _wxApp = wx.PySimpleApp()
    return _wxApp