WebComic 3

import sys, os, io
import json
import urllib.request
from PIL import Image
from bs4 import BeautifulSoup

source = sys.argv[1]

page = urllib.request.urlopen(source).read()
soup = BeautifulSoup(page, 'html.parser')
item = soup.find('',{'class':'pages'})
last_item = item.find_all('div')[-2]
cPage = int(last_item['data-ptimg'][5:9])

for c in range(1, cPage + 2):

    #Open the image at given URL plus the image
    with urllib.request.urlopen(source + '/data/' + f'{c:04}' + '.jpg') as url:
        f = io.BytesIO(url.read())

    im = Image.open(f)
    #Open the corresponding JSON
    with urllib.request.urlopen(source + '/data/' + f'{c:04}' + '.ptimg.json') as url:
        j = io.BytesIO(url.read())
    data = json.load(j)
    #Create the new image
    out = Image.new('RGB', (data['views'][0]['width'], data['views'][0]['height']))
    #Descramble based off of JSON
    for i in data['views'][0]['coords']:
        src = i[2:].split(',', 1)
        srcX = src[0]
        srcY = src[1].split('+', 1)
        fWidth = srcY[1].split(',', 1)
        fHeight = fWidth[1].split('>', 1)
        dest = fHeight[1].split(',')
        out.paste(im.crop((int(srcX), int(srcY[0]), int(srcX) + int(fWidth[0]), int(srcY[0]) + int(fHeight[0]))), (int(dest[0]), int(dest[1])))
    #Give status updates
    print(f'{c:04}' + '.png')
    #Modify this line if you want to save in a different location or namespace
    out.save(f'{c:04}' + '.png', format='PNG', optimize=True)