Why does this code return a error

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Python

i want to get all the pictures off of /r/memes/ on reddit and store them in a folder.
when i run this code i get "line 10, in <module>
image_tags = soup.findALL('img')
TypeError: 'NoneType' object is not callable"

What I have tried:

import requests
from bs4 import BeautifulSoup as bs
import os

url = 'https://www.reddit.com/r/memes/'

page = requests.get(url)
soup = bs(page.text,'html.parser')

image_tags = soup.findALL('img')

if not os.path.exists('memes'):
    os.makedirs('memes')

os.chdir('memes')

x = 0

for image in image_tags:
    try:
        url = image['src']
        source = requests.get(url)
        if source.status_code == 200:
            with open('memes-' + str(x) + '.jpg', 'wb') as f:
                f.write(requests.get(url).content)
                f.close()
                x += 1
    except:
        pass