funkcje rezerw i przesuniec

app.py

@@ -1,5 +1,5 @@
 import markdown as md
-import hashlib, os
+import hashlib, os, re, socket, ipaddress
 import re
 import socket
 from flask import Flask, render_template, request, redirect, url_for, flash
@@ -19,6 +19,7 @@ from sqlalchemy import event, Numeric, select
 from sqlalchemy.engine import Engine
 from decimal import Decimal, InvalidOperation
 from flask import request, flash, abort
+
 try:
     from zoneinfo import ZoneInfo  # Python 3.9+
 except ImportError: