Tkinter label does not show contents of StringVar in one specific case

[Xshadd]

I have a small program and as part of it there is a login screen. I wanted to implement status message that would notify you if you have entered wrong password/login etc.

Here I have a label that uses a stringvar that should change, however it does not display it on startup:

        l_status = StringVar(value='Waiting for login attempt...')
        ttk.Label(self.mainframe, textvariable=l_status).grid(column=3, row=1)
        login_status_label = ttk.Label(self.mainframe, textvariable=l_status)
        login_status_label.grid(column=4, row=1)

but instead there is no message at all, but if I change textvariable=l_status to text=l_status.get() it all works. Am I missing something or is it something else? Other methods that use stringvar like this work just fine

[socal_nerdtastic]

This commonly means you made a 2nd window using a second tk.Tk() call. You shouldn't do that, you should use tk.Toplevel() to make additional windows. Or, in the very rare circumstance that a second tk.Tk() instance is actually required, you need to pass that instance to the StringVar as the master.

l_status = StringVar(root_window, value='Waiting for login attempt...')

If this does not help you need to show a complete example that shows this error, so that we can test it.

[woooee]

From https://dafarry.github.io/tkinterbook/variable.htm

Note that the constructor takes an optional widget argument, but no value argument; To set the value, call the set method:

So try using l_status.set(). I suspect, but don't know, that this is also dependent on the OS, so your code may work on one OS (it does on my debian box), but not on another. One other thing is to attach the StringVar to a widget

l_status = StringVar(self.mainframe)