Slackmojis.com Downloader

slackmojis_downloader.py

import os
import sys
import requests

from bs4 import BeautifulSoup


def show_arg():

    req = requests.get(sys.argv[1])
    soup_response = BeautifulSoup(req.text, "html.parser")
    script_dir = os.path.dirname(os.path.abspath(__file__))
    dest_dir = os.path.join(script_dir, "slackmojis")

    try:
        os.makedirs(dest_dir)

    except OSError:
        pass  # already exists

    for img in soup_response.find_all("img"):
        src_attr = img.get("src")

        if src_attr.find("/"):
            filename = src_attr.rsplit("/", 1)[1].split("?", 1)[0]

        with open(os.path.join(dest_dir, filename), "wb") as file:
            print("Downloading %s" % filename)
            response = requests.get(src_attr, stream=True)
            file_size = response.headers.get("content-length")

            if file_size is None:  # no content length header
                file.write(response.content)
            else:
                dl = 0
                file_size = int(file_size)
                for data in response.iter_content(chunk_size=4096):
                    dl += len(data)
                    file.write(data)
                    done = int(50 * dl / file_size)
                    sys.stdout.write("\r[%s%s]" % ("=" * done, " " * (50 - done)))
                    sys.stdout.flush()


if __name__ == "__main__":
    show_arg()

Thanks for this. It was really helpful. However, I noticed that sometimes Slackmojis page contains more than one emoji with the same filename. As a result, only the last one was preserved after using this script to download them. Therefore, I slightly improved this script by generating filenames with suffixes in case of duplicates (e.g. if foo.png is taken, then it will try foo-2.png, then foo-3.png etc.). Feel free to check it out here: https://gist.github.com/azabost/c73394854e4022e9cc67547913b231d5