[Python] How to get a reference to traced variable in tkinter

I have a tkinter application with variable number of entries and I want to detect changes to the contents and specifically, which entry has been changed

import tkinter as tk
from tkinter import ttk

DOGS = 3

def main() -> None:
root = tk.Tk()
root.title('')
root.geometry('400x400')

dogs = {}
entries = {}

for row in range(DOGS):
dogs[row] = tk.StringVar()
dogs[row].trace_add('write', dog_changed)
entries[row] = ttk.Entry(root, textvariable=dogs[row])
entries[row].grid(row=row, column=0)

root.mainloop()

def dog_changed(*args):
print(args)

if __name__ == '__main__':
main()


I can see in args that I have the name of the StringVar as a string (e.g."PY_VAR0"), but is there a more elegant way of getting a reference to which entry has been changed rather than taking a substr here.

I have tried this lambda function, but of course it only show the current value of row

dogs[row].trace_add('write', lambda *args: dog_changed(row, *args))

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