after import tkmacosx, tk.Menu.delete() throw exception:argument of type 'NoneType' is not iterable

[aeroju]

Exception throw from:
tkinter/init.py", line 2923, in delete
if 'command' in self.entryconfig(i):

After dig into tkmacosx, in tkmacosx.variables, function:_colorvar_patch_configure, line 66~67 could be moved after line 70.

After doing that, this exception was gone and all works.

The reason is when call tk.Misc._configure, if cnf==None, it will return all cnf items( line 1472, tkinter.init.py )

[Saadmairaj]

Can you please provide complete trackback error and the situation caused it?

[aeroju]

Can you please provide complete trackback error and the situation caused it?

Here is the sample code:

import tkinter as tk
import tkmacosx


class MyApp():
    def __init__(self):
        self.root = tk.Tk()
        self.root.configure(background='white')

        def clear_searchs():
            while (_menu.index(tk.END) is not None):
                i = _menu.index(tk.END)
                _menu.delete(i)

        tkmacosx.Button(self.root, text='search',
                        padx=10, pady=5,
                        borderless=1, borderwidth=0,
                        command=lambda: print('aaa'),
                        bg='green', fg='blue').pack(side='top', pady=(10, 0))

        tkmacosx.Button(self.root, text='clear',
                        padx=10, pady=5,
                        borderless=1, borderwidth=0,
                        command=clear_searchs,
                        bg='green', fg='blue').pack(side='top', pady=(10, 0))

        mbutton = tk.Menubutton(
            self.root, text='recent search', relief=tk.RAISED)
        _menu = tk.Menu(mbutton, tearoff=0, fg='black')
        mbutton.menu = _menu
        mbutton['menu'] = _menu
        mbutton.pack(side='top', padx=(0, 10))

        def do_search(item):
            print(item)

        _menu.add_command(label='search item1',
                          command=lambda: do_search('item1'))
        _menu.add_command(label='search item2',
                          command=lambda: do_search('item2'))


app = MyApp()
app.root.mainloop()

And after click button "clear", the complete trackback was:

Exception in Tkinter callback
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/init.py", line 1705, in call
      return self.func(*args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tkmacosx/basewidget.py", line 1094, in cmd
      self.cnf['command']()
  File "/Users/owl/workspace/test_tkmac.py", line 11, in clear_searchs
      _menu.delete(i)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/init.py", line 2923, in delete
      if 'command' in self.entryconfig(i):
TypeError: argument of type 'NoneType' is not iterable

[Saadmairaj]

I've fixed the error in the last commit c67ed8c, Though I haven't released it on pypi yet so you can force reinstall tkmacosx from the GitHub with the following command

pip install --upgrade --force-reinstall git+https://github.com/Saadmairaj/tkmacosx

[aeroju]

Thanks for quick fix, however, there is another problem, here is the sample code:

import tkinter as tk
import tkmacosx
class MyApp():
    def __init__(self):
        self.root = tk.Tk()
        self.root.configure(background='white')

        self.canvas = tk.Canvas(self.root
                                     , borderwidth=0
                                     , highlightthickness=0
                                     , background='white')
        self.viewPort = tk.Frame(self.canvas,
                                      background='white')
        self.vsb = tk.Scrollbar(self.root, orient="vertical",
                                 command=self.canvas.yview)
        self.canvas.configure(yscrollcommand=self.vsb.set)

        self.vsb.pack(side="right", fill="y")
        self.canvas.pack(side="left", fill="both", expand=True)
        self.canvas_window = self.canvas.create_window((0, 0), window=self.viewPort, anchor="nw",
                                                       tags="self.viewPort")
        self.viewPort.bind("<Configure>",
                           self.onFrameConfigure)
        self.canvas.bind("<Configure>",
                         self.onCanvasConfigure)
        self.viewPort.bind("<MouseWheel>", self.onMouseWheel)
        self.canvas.bind("<MouseWheel>", self.onMouseWheel)

        self.onFrameConfigure(None)

        def clear_searchs():
            while (_menu.index(tk.END) is not None):
                i=_menu.index(tk.END)
                _menu.delete(i)
        tkmacosx.Button(self.viewPort, text='search',
                        padx=10, pady=5,
                        borderless=1, borderwidth=0,
                        command=lambda :print('aaa'),
                        bg='green', fg='blue').pack(side='top',pady=(10,0))
        tkmacosx.Button(self.viewPort, text='clear',
                        padx=10, pady=5,
                        borderless=1, borderwidth=0,
                        command=clear_searchs,
                        bg='green', fg='blue').pack(side='top',pady=(10,0))
        mbutton=tk.Menubutton(self.viewPort, text='recent search', relief=tk.RAISED)
        _menu = tk.Menu(mbutton,tearoff=0,fg='black')
        mbutton.menu=_menu
        mbutton['menu']=_menu
        mbutton.pack(side='top',padx=(0,10))
        def do_search(item):
            print(item)
        _menu.add_command(label='search item1',command=lambda : do_search('item1'))
        _menu.add_command(label='search item2',command=lambda : do_search('item2'))

    def onFrameConfigure(self, event):
        self.canvas.configure(scrollregion=self.canvas.bbox(
            "all"))

    def onCanvasConfigure(self, event):
        canvas_width = event.width
        self.canvas.itemconfig(self.canvas_window,
                               width=canvas_width)
        self.onRedraw()

    def onMouseWheel(self,event):
        IS_WINDOWS=False
        if(IS_WINDOWS):
            self.canvas.yview_scroll(int(-1 * (event.delta / 120)), "units")
        else:
            if(event.delta<0 and self.vsb.get()[0]>0
                or event.delta>0 and self.vsb.get()[1]<1):
                self.canvas.yview_scroll(event.delta, "units")

    def onRedraw(self):
        pass


app = MyApp()
app.root.mainloop()

And the traceback when run:

Exception in Tkinter callback
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/__init__.py", line 1705, in __call__
    return self.func(*args)
  File "/Users/owl/workspace/test_tkmac.py", line 63, in onCanvasConfigure
    width=canvas_width)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/__init__.py", line 2578, in itemconfigure
    return self._configure(('itemconfigure', tagOrId), cnf, kw)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tkmacosx/variables.py", line 75, in _patch
    tmp_dict = cnf if i in cnf else kw
TypeError: argument of type 'NoneType' is not iterable

[Saadmairaj]

TypeError: argument of type 'NoneType' is not iterable

The above error has been fixed, use the same command to force reinstall tkmacosx from GitHub.

pip install --upgrade --force-reinstall git+https://github.com/Saadmairaj/tkmacosx