class Blog(db.Model): id = db.StringProperty(required=True) name = db.StringProperty(required=True) url = db.LinkProperty(required=True) articleIDs = db.StringListProperty() articleID = str(uuid.uuid1()) Article(id=articleID, name="hello", content="hello world").put() blog.articleIDs = [articleID] blog.put() ...</pre>

if user: #User Logined else: #User Need Login =&gt; Redirect to login page self.redirect(users.create_login_url(self.request.uri))</pre>

Tkinter._test() form = Tk() … form.mainloop() form = Tk() form.title(“HelloWorld Demo”) form.geometry(“300x200”) lbl = Label(form, text=“Hello, world!”) lbl.pack() form.mainloop()

namespace CustomChangeMonitorDemo { public class ClipboardChangeMonitor : ChangeMonitor { #region Var private string _clipboardText; private Timer _timer; private string _uniqueID; #endregion #region Private Property private string m_ClipboardText { get { return _clipboardText ?? string.Empty; } set { if (_clipboardText == value) return; _clipboardText = value; OnChanged(value); } } private System.Windows.Forms.Timer m_Timer { get { return _timer ?? (_timer = new System.Windows.Forms.Timer()); } } #endregion #region Public Property public override string UniqueId { get { return _uniqueID ?