How do I return word under cursor in tkinter?

To get the character position under the cursor, you use an index of the form "@x,y". You would get the x and y coordinates from an event, or from the current position of the mouse.

The special index "sel.first" and "sel.last" (or the Tkinter module constants SEL_FIRST, SEL_LAST) give you the index of the first and last characters in the current selection.

Here's a contrived example. Run the code, and move your mouse around to see what is printed on the status bar.

import Tkinter as tkclass Example(tk.Frame):    def __init__(self, parent):        tk.Frame.__init__(self, parent)        self.status = tk.Label(anchor="w", text="woot")        self.text = tk.Text(wrap="word", width=60, height=10)        self.status.pack(side="bottom", fill="x")        self.text.pack(side="top", fill="both", expand=True)        self.text.insert("1.0", "Move your cursor around to see what " +                         "index is under the cursor, and what " +                         "text is selected\n")        self.text.tag_add("sel", "1.10", "1.16")        # when the cursor moves, show the index of the character        # under the cursor        self.text.bind("<Any-Motion>", self.on_mouse_move)    def on_mouse_move(self, event):        index = self.text.index("@%s,%s" % (event.x, event.y))        ch = self.text.get(index)        pos = "%s/%s %s '%s'" % (event.x, event.y, index, ch)        try:            sel = "%s-%s" % (self.text.index("sel.first"), self.text.index("sel.last"))        except Exception, e:            sel = "<none>"        self.status.configure(text="cursor: %s selection: %s" % (pos, sel))if __name__ == "__main__":    root = tk.Tk()    Example(root).pack(fill="both", expand=True)    root.mainloop()

You can use QTextEdit::cursorForPosition to get a cursor for mouse position. After that you can call QTextCursor::select with QTextCursor::WordUnderCursor to select the word and QTextCursor::selectedText to get the word.