def __init__(self, *args):
Toplevel.__init__(self, *args)
self.title("Search")
self.frame = Frame(self, padx=2, pady=2, bd=3)
self.frame.pack()
# Using Tk 's variable tracing
# Checkout http://stupidpythonideas.blogspot.in/2013/12/tkinter-validation.html
self.namevar = StringVar()
self.namevar.trace('w', self.on_update)
search = ttk.Entry(self.frame, textvariable=self.namevar)
search.grid(row=0, columnspan=2, padx=3)
search.focus_set()
# Binding a <Return> pressed event
search.bind('<Return>', lambda _: self.on_update())
s = ttk.Style()
s.configure("Submit.TButton", font=BUTTON_FONT, sticky="e")
search_button = ttk.Button(self.frame,
text="Search",
style="Submit.TButton",
command=lambda: self.on_update())
search_button.grid(row=0, column=3, padx=3, sticky="e")
# Awesomeness here
self.tree = List.GetTreeFrame(self, bd=3)
self.tree.pack()
