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POTkinter - RuntimeError: maximum recursion depth exceeded
 

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  1. POTkinter - RuntimeError: maximum recursion depth exceeded
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    <p>I started programming in Python on Monday. I have enjoyed learning it. But I am stuck trying to understand how to avoid recursion when switching between tkinter menus! I am sure this is a very basic question, and I appreciate you tolerating my ignorance on this subject, but I have been unable to find an answer elsewhere.</p> <p>What I am now doing is, eventually, giving me the error: RuntimeError: maximum recursion depth exceeded while calling a Python object</p> <p>This is the pattern I am currently using. UPDATED: The code below is now a full, isolated copy reproducing the problem I am facing! :D</p> <pre><code>from tkinter import * def mainmenu(): global frame, root frame.destroy() frame = Frame() frame.pack() button1 = Button(frame, text="anothermenulikethis", command = anothermenulikethis) button2 = Button(frame, text="anothermenulikethis", command = anothermenulikethis) button3 = Button(frame, text="mainmenu", command = mainmenu) button1.pack(side=LEFT) button2.pack(side=LEFT) button3.pack(side=LEFT) root.mainloop() def anothermenulikethis(): global frame, root frame.destroy() frame = Frame() frame.pack() button1 = Button(frame, text="mainmenu", command = mainmenu) button2 = Button(frame, text="mainmenu", command = mainmenu) button3 = Button(frame, text="anothermenulikethis", command = anothermenulikethis) button1.pack(side=LEFT) button2.pack(side=LEFT) button3.pack(side=LEFT) root.mainloop() root = Tk() root.title("Recursive Menu Problem Isolation") root.geometry("1200x600") frame = Frame() mainmenu() </code></pre> <p>And it all works fine, until its inevitable failure from maximum recursion depth. If anyone can suggest a better way of doing things, or has a link to an example of a better way of doing this, I am eager to learn.</p> <p>PS: I have looked at and tried increasing the recursion depth, but I feel that is a poor man's solution to what is a fundamental problem with my approach.</p> <p>Thank you in advance, everyone.</p> <p>As requested, here is the traceback:</p> <pre><code>Exception in Tkinter callback Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/tkinter/__init__.py", line 1399, in __call__ return self.func(*args) File "/Users/diligentstudent/Desktop/menutest.py", line 11, in mainmenu button1 = Button(frame, text="anothermenulikethis", command = anothermenulikethis) File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/tkinter/__init__.py", line 2028, in __init__ Widget.__init__(self, master, 'button', cnf, kw) File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/tkinter/__init__.py", line 1958, in __init__ (widgetName, self._w) + extra + self._options(cnf)) File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/tkinter/__init__.py", line 1043, in _options v = self._register(v) File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/tkinter/__init__.py", line 1079, in _register f = CallWrapper(func, subst, self).__call__ RuntimeError: maximum recursion depth exceeded </code></pre>
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    1. USA Diligent Student
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    1. COCan you post the stacktrace? Need to know which function is causing the recursion depth exception.
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    2. COI have posted the traceback as requested. :)
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