title: Unbinding all canvas items in tkinter
body: <p>I'm really new to tkinter...</p>
  
  <p>I'm unable to unbind canvas items in tkinter.</p>
  
  <p>The items are binded by</p>
  
  <pre><code>self.canvas = Canvas(root, background="white")
  self.canvas.create_line(x1, y1, x2, y2, fill="blue", tags=scale_index_tag)
  self.canvas.tag_bind(scale_index_tag, "&lt;ButtonPress-1&gt;", self.Add_weight)
  </code></pre>
  
  <p>I have tried</p>
  
  <pre><code>self.canvas.unbind("&lt;ButtonPress-1&gt;")
  
  self.canvas.unbind_all(self.Add_weight)
  
  self.canvas.unbind_all("&lt;ButtonPress-1&gt;")
  </code></pre>
  
  <p>...no success.</p>
  
  <p>I even tried to delete all the canvas items and regenerate them with no binding but still when I click the mouse, Add_weight-method is called... </p>
  
  <pre><code>self.canvas.delete(ALL)
  </code></pre>