from bs4 import BeautifulSoup
import urllib.request
import random
import string
url_base = 'https://prnt.sc/'
def get_html():
    global url_last3
    url_last3 = str(''.join(random.choice(string.digits + string.ascii_lowercase) for _ in range(3)))
    req = str(url_base + url_first3 + url_last3)
    html = urllib.request.urlopen(req).read()
    return html
def main():
    count = input('How many pictures I must download? ')
    pic_count = int(count)
    global url_first3
    url_first3 = input('Enter first 3 digits: ')
    print('OK! Now I`ll download ' + count + ' pictures with the "' + url_first3 + '" first digits!')
    opener = urllib.request.build_opener()
    opener.addheaders = [('User-Agent', 'Mozilla/5.0')]
    urllib.request.install_opener(opener)
    for counter in range(pic_count):
        html = get_html()
        soup = BeautifulSoup(html, 'html.parser')
        picture_url = soup.find(id='screenshot-image')['src']
        urllib.request.urlretrieve(picture_url, picture_url[40:])
        count = counter + 1
        print (str(count) + '   [' + str(url_first3) + str(url_last3) + '] - [' + picture_url + '] - DONE!')
if __name__ == '__main__':
    main()

 import re
import requests
import random
from string import ascii_lowercase, digits
from bs4 import BeautifulSoup
import os
#
ROOT_URL = r'https://prnt.sc/'
MY_HEADERS = {"user-agent": "Mozilla/5.0 (X11; Linux x86_64)"
                            " AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.141"
                            " YaBrowser/22.3.3.889 Yowser/2.5 Safari/537.36",
              }
MY_PATH = '/home/xam/Загрузки/test_folder'
#
def get_random_char_set():
    out = ''
    for _ in range(random.randint(6, 7)):
        out += random.choice(ascii_lowercase+digits)
    return out
#
def get_html(url):
    resp = requests.get(url, headers=MY_HEADERS)
    if resp.ok:
        return resp.content
    else:
        print(resp.status_code)
#
def get_img_src_from_html(html):
    soup = BeautifulSoup(html, 'html.parser')
    search_img = soup.find(id='screenshot-image', src=re.compile(r'https'))
    if search_img:
        return search_img['src']
#
def download_img(path, img_src):
    resp = requests.get(img_src, headers=MY_HEADERS)
    if resp.status_code == 200:
        if resp.headers['content-type'] in ['image/png', 'image/jpeg']:
            with open(os.path.join(path,img_src.rsplit('/', 1)[1]), 'wb') as f:
                f.write(resp.content)
        else:
            print(resp.headers['content-type'])
    else:
        print(f'{img_src} status code:{resp.status_code}')
#
#
def download_several_img(count):
    i = 0
    while i < count:
        char_set = get_random_char_set()
        html = get_html(ROOT_URL+char_set)
        img_src = get_img_src_from_html(html)
        if img_src:
            print(char_set)
            download_img(MY_PATH, img_src)
            i += 1
        else:
            print('*')
#
if __name__ == '__main__':
    download_several_img(3) # загрузит 3 картинки