The script/entrypoint discord_webhook tries to create the DiscordWebhook using a list of urls

[fizmat]

The --url argument allows multiple values ('+'), so args.url is actually a list of strings (even when given only one --url):

python-discord-webhook/discord_webhook/__main__.py

Line 28 in 64e5fd5

url=args.url,

But the DiscordWebhook accepts only one str url in the constuctor

python-discord-webhook/discord_webhook/webhook.py

Line 240 in 64e5fd5

def __init__(self, url: str, **kwargs) -> None:

It does not fail in the constructor, but when trying to connect it passes the list to requests and that fails:

.\python\Scripts\discord_webhook.exe --url "https://discord.com/api/webhooks/*redacted*" -c "asdf"
Traceback (most recent call last):
  File "*redacted*\python\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "*redacted*\python\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "*redacted*\python\Scripts\discord_webhook.exe\__main__.py", line 7, in <module>
  File "*redacted*\python\lib\site-packages\discord_webhook\__main__.py", line 33, in main
    return webhook.execute() is not None
  File "*redacted*\python\lib\site-packages\discord_webhook\webhook.py", line 444, in execute
    response = self.api_post_request()
  File "*redacted*\python\lib\site-packages\discord_webhook\webhook.py", line 388, in api_post_request
    return requests.post(
  File "*redacted*\python\lib\site-packages\requests\api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
  File "*redacted*\python\lib\site-packages\requests\api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
  File "*redacted*\lib\site-packages\requests\sessions.py", line 589, in request
    resp = self.send(prep, **send_kwargs)
  File "*redacted*\python\lib\site-packages\requests\sessions.py", line 697, in send
    adapter = self.get_adapter(url=request.url)
  File "*redacted*\python\lib\site-packages\requests\sessions.py", line 792, in get_adapter
    raise InvalidSchema(f"No connection adapters were found for {url!r}")
requests.exceptions.InvalidSchema: No connection adapters were found for "['https://discord.com/api/webhooks/*redacted*']"

You can

1. drop CLI: if nobody noticed that it doesn't work, is it even useful?
2. only allow one --url: it's very simple to do and probably enough for a minimal CLI
3. rewrite CLI and use provided urls sequentially: is simple, but requires some work
4. rewrite CLI and use provided urls sequentially, but send in parallel if discord_webhook[async] is installed: it's probably overkill