How to execute another piece of python code?

Question

Python

python 3.8
code

import telebot
import requests
#качаем нужный файл
def download(fileName):
    f = open(fileName,'wb')
    f.write(requests.get('site.com', headers={'User-Agent': 'My User Agent 1.0'}).content)
    f.close()
for i in range(1):
    download(str(i)+'.jpg')

#отправляем скачаный файл пользователю при нажатии start
bot = telebot.TeleBot('token')
@bot.message_handler(commands=['start'])	
def start_message(message):
      chat_id=id
      bot.send_photo(chat_id=chat_id, photo=open('0.jpg', 'rb'))
    

bot.polling()

How can I repeat the section of code after clicking on start so that it performs the download again

#качаем нужный файл
def download(fileName):
    f = open(fileName,'wb')
    f.write(requests.get('site.com', headers={'User-Agent': 'My User Agent 1.0'}).content)
    f.close()
for i in range(1):
    download(str(i)+'.jpg')

Answer 1

The solution was suggested by the user in the comments Andrey call the download function in the start_message function

Answer 2

def download(fileName):
    f = open(fileName,'wb')
    f.write(requests.get('site.com', headers={'User-Agent': 'My User Agent 1.0'}).content)
    f.close()
while True
    download(str(i)+'.jpg')

to download endless times

def download(fileName):
    f = open(fileName,'wb')
    f.write(requests.get('site.com', headers={'User-Agent': 'My User Agent 1.0'}).content)
    f.close()
for i in range(100):
    download(str(i)+'.jpg')

for downloading 100 times, just change the number in the range brackets, but in general it’s better to learn the language