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copied!<p>Thanks for posting this question and for providing a solution. I can't count how many hours I lost trying to fix up the symptoms created by this behaviour. Weird <code>Tk</code> design decision that <code>tag_bind</code> is insenstive to <code>return "break"</code>.</p> <p>Following your idea to hijack the <code>Text</code> widget by binding it with the same event sequence as <code>tag_bind</code>, I have improved the solution, which <strong>enables now to simulate the expected <code>return "break"</code> behaviour of Tk's other bind+callback pairs</strong>. The idea is the following (full source below):</p> <ol> <li>create a wrapper around the wished <code>callback</code>, i.e. a callable class instance</li> <li>when the class instance is called, run <code>callback</code> and check its result. <ul> <li>if the result is <code>"break"</code>, temporarily hijack the event propagation: <code>bind</code> the <code>Text</code> widget to the same event bound to <code>tag_bind</code>, with an empty callback. Then, after an idle time, <code>unbind</code>.</li> <li>if the result is not <code>"break"</code>: do nothing, the event will propagate to <code>Text</code> automatically</li> </ul></li> </ol> <p>Here is a full working example. My specific problem was to get some sort of <em>hyper text</em> behaviour: ctrl-clicking on a hyper-text should not move the insertion point to the click's location. The example below shows that within the same callback wrapped in <code>tag_bind</code>, we can propagate or not the event to the <code>Text</code> widget, simply by returning <code>"break"</code> or another value.</p> <pre><code>try: # Python2 import Tkinter as tk except ImportError: # Python3 import tkinter as tk class TagBindWrapper: def __init__(self, sequence, callback): self.callback=callback self.sequence=sequence def __call__(self, event): if "break" == self.callback(event): global text self.bind_id=text.bind(self.sequence, self.break_tag_bind) return "break" else: return def break_tag_bind(self, event): global text # text.after(100, text.unbind(self.sequence, self.bind_id)) text.after_idle(text.unbind, self.sequence, self.bind_id) return "break" def callback_normal(event): print "normal text clicked" return "break" def callback_hyper(event): print "hyper text clicked" if event.state & 0x004: # ctrl modifier return "break" # will not be passed on to text widget else: return # will be passed on to text widget # setup Text widget root=tk.Tk() text = tk.Text(root) text.pack() text.tag_config("normal", foreground="black") text.tag_config("hyper", foreground="blue") text.tag_bind("hyper", "<Button-1>", TagBindWrapper("<Button-1>", callback_hyper)) text.tag_bind("normal", "<Button-1>", callback_normal) # write some normal text and some hyper text text.insert(tk.END, "normal text, ", "normal") text.insert(tk.END, "hyper text (try normal-click and ctrl-click).", "hyper") root.mainloop() </code></pre> <p>There is one simplification I couldn't find how to do: replace the wrapper call <code>TagBindWrapper("<Button-1>", callback_hyper)</code> by <code>TagBindWrapper(callback_hyper)</code>, i.e. get the information of the event 'sequence' string (<code>"<Button-1>"</code>) simply from the <code>event</code> object passed to <code>__call__</code>. Is it possible?</p>

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