Tk Ruby

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require "tk"
root = TkRoot.new() { title "Today's Date" }
str = Time.now.strftime("Today is \n%B %d, %Y")
lab = TkLabel.new(root) do
        text str
        pack("padx" => 15, "pady" => 10,
             "side" => "top")
      end
Tk.mainloop