What should I change in the code so that the created document displays the date selected through the calendar?

Question

Python

Good afternoon, I'm wildly sorry, but I just need to get an explanation, because the second day I'm racking my brains.

Task: to make a program for autofilling one standard document. The program in its current form is generally still far from the ideal I need, but it seems like I have already selected all the combinations of code I need and even planned to finally “comb” it and make the design through Cuti Designer, but there was one snag.

Question: document date. I don’t want to fill it out through the input function, I want the calendar to fly out conveniently and beautifully, you can select a date and it would automatically go into the document. What am I doing wrong, what should I put paragraph.text = paragraph.text.replace("date", ********) instead of asterisks? I can’t assign a variable to a date, or in principle you can’t do it through tkcalendar (but I really want to, I was already so close to completion ((()?

P.S. Do not judge strictly the code as a whole, I am self-taught and in programming week, this is my second program that I'm trying to write for work, in order to learn how to write code and understand the logic of actions
PS 2. In my opinion, tkcalendar does not fit here at all, I'm more and more inclined towards this, what other options are there

? samplehttps://drive.google.com/file/d/1QHLtZfcsVZ8vjkXdk...

from docxtpl import DocxTemplate
from datetime import date
import datetime
from docx.shared import Inches

doc = DocxTemplate("шаблон.docx")

# Номер приказа
number = input ( "Номер предыдущего приказа: " )
n = int (number) + 1

# Данные ответственного
last_names = input ( 'Фамилия ответственного в род. падеже: ' )
first_names = input ( 'Имя ответственного в род. падеже: ' )
add_names = input ( 'Отчество ответственного в род. падеже: ' )

# Сокращение ИО
full_names = str (str (last_names) + ' ' + str (first_names) + ' ' + str (add_names))

short_names = str (str (last_names) + '  ' + str (first_names [0]) + '. ' + str (add_names [0]) + '.')

# Адрес магазина               
address = input ( "Адрес магазина: " )

try:
    import tkinter as tk
    from tkinter import ttk
except ImportError:
    import Tkinter as tk
    import ttk

from tkcalendar import Calendar

def example1():
    def print_sel():
        a = str (cal.selection_get())
        print (a)
    def quit1():
        top.destroy()

    top = tk.Toplevel(root)

    cal = Calendar(top,
                   font="Arial 14", selectmode='day',
                   cursor="hand1", year=2021, month=1, day=1)
    cal.pack(fill="both", expand=True)
    ttk.Button(top, text="ok", command=print_sel).pack()

root = tk.Tk()
s = ttk.Style(root)
s.theme_use('clam')

ttk.Button(root, text='Календарь', command=example1).pack(padx=10, pady=10)

root.mainloop()

for paragraph in doc.paragraphs:
    paragraph.text = paragraph.text.replace("name", str (full_names))
    paragraph.text = paragraph.text.replace("address", str (address))
    paragraph.text = paragraph.text.replace("number", str (n))
    paragraph.text = paragraph.text.replace("short", str (short_names))
    paragraph.text = paragraph.text.replace("date", ********)
    
doc.save("test1.docx")<code>

Answer 1

Instead of asterisks, it is probably necessary to put cal.get_date ()
But due to the lack of "template.docx" I can not confirm .. It's impossible to check. Just the date goes to the console and the program stops there. No crashes, no errors.. just stops