The parser does not change the page, what should I do?

Question

Python

For some reason, the pages do not change, and the program adds the same information to the apt list every time.

import requests
from bs4 import BeautifulSoup
import csv

URL = 'https://www.avito.ru/sankt-peterburg/kvartiry/sdam/2-komnatnye-ASgBAQICAUSSA8gQAUDMCBSQWQ?user=1&f=ASgBAQICAkSSA8gQ8AeQUgFAzAgUkFk'
HEADERS = {'user-agent': '********************************************', 'accept': '*/*'}
FILE = 'apt.csv'

def get_html(url, params=None):
    r = requests.get(url, headers=HEADERS, params=params)
    return r

def get_pages_count(html):
    soup = BeautifulSoup(html, 'html.parser')
    pages = soup.find_all('span', class_='pagination-item-1WyVp')
    if pages:
        return int(pages[-2].get_text())
        print(int(pages[-2].get_text()))
    else:
        return 1

def get_content(html):
    soup = BeautifulSoup(html, 'html.parser')
    items = soup.find_all('div', class_='snippet-horizontal')
    apt = []
    for item in items:
        try:
            apt.append({
                'adress' : item.find('span', class_='item-address__string').get_text(strip=True),
                'metro' : item.find('span', class_='item-address-georeferences-item__content').get_text(strip=True),
                'cost' : item.find(itemprop='price').get('content'),
                'link' : 'https://www.avito.ru/' + item.find('a', class_='snippet-link').get('href')
            })
        except AttributeError:
            pass
    return apt


def save_file(items, path):
    with open(path, 'w', newline='') as file:
        writer = csv.writer(file, delimiter = ';')
        writer.writerow(['Адрес','Метро','Цена','Ссылка'])
        for item in items:
            writer.writerow([item['adress'],item['metro'],item['cost'],item['link']])

def parse():
    html = get_html(URL)
    if html.status_code == 200:
        apt=[]
        pages_count = get_pages_count(html.text)
        for page in range(1, pages_count + 1):
            print(f'Парсинг страницы {page} из {pages_count}...')
            html = get_html(URL, params={'&p': page})
            apt.extend(get_content(html.text))
        save_file(apt, FILE)
        print(apt)
        print(f'Получено {len(apt)} квартир.')
    else:
        print('ERROR')

parse()

Answer 1

params={'&p': page}
Most likely here is the problem. Remove the ampersand