python 3.x - How to select a random Entry on a tkinter canvas?

Question

I'm making a simple sudoku generator, and have got 81 different entries (e1, e2, e3, e4 ... etc). I would like to know if there is any way to select a random entry to insert a number into.

So kind of like this:

num = randint(0, 81)
entry = "e" + str(num)
entry.insert()

With the above code you get an error saying str object has no attribute 'insert' which makes sense, but is there any way to 'convert' a string to a variable name?

Thanks in advance.

Answer 1

Store the entries in a list, then use random.choice to pick one of the entries.

entries = []
for i in range 81:
    entry = tk.Entry(...)
    entries.append(entry)
...
random_entry = random.choice(entries)