[Python] Restrict date selection from calendar to specific dates

I'd like to let the user pick one out of a list of dates from my calendar but prevent her from selecting any other date.

Based on this answer I managed to restrict the date range that can be selected but I couldn't exclude days in between.

import datetime as dt
import tkinter as tk
from tkinter import ttk
from tkcalendar import DateEntry

# fmt: off
dates = [
"2024-04-08", "2024-04-10", "2024-04-11", "2024-04-12",
"2024-04-15", "2024-04-16", "2024-04-17", "2024-04-18", "2024-04-19",
"2024-04-22",
"2024-05-21", "2024-05-22", "2024-05-23", "2024-05-24",
"2024-05-27", "2024-05-28", "2024-05-29", "2024-05-30", "2024-05-31",
"2024-06-03", "2024-06-04", "2024-06-05", "2024-06-07",
"2024-06-10", "2024-06-11", "2024-06-12", "2024-06-13", "2024-06-14",
]
# fmt: on

root = tk.Tk()

date_entry_var = tk.StringVar()
date_entry = DateEntry(
root,
textvariable=date_entry_var,
date_pattern="yyyy-mm-dd",
mindate=dt.date.fromisoformat(dates[0]),
maxdate=dt.date.fromisoformat(dates[-1]),
)
date_entry.pack()

root.mainloop()


Is there a way that makes it possible to select from a list of dates with a calendar widget?

tk is required because I'm working with tk in the entire app but answer do not need to use the tkcalendar module if there are alternatives.

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