CODEWITHSUNDEEP
pythonbotstelegramtelethon
OptimalNailcutter1337
OptimalNailcutter1337

Reputation: 23

Command handler Telethon

I started building a bot with the Telethon library but couldn't find a clean way to separate the command from the text.

For example, with the python-telegram-bot library, I can retrieve the first argument after the command like this:

def test(update, context):
    arg_1 = context.args[0]
    print(arg_1) # Prints the first word after the command

So... There's a way to make something like this using Telethon? (I'm using this piece of code to split text from command but I think this method is not really good):

txt = event.message.message.lower()
try:
    txt.split("!raw ")[1]
    text = event.message.message[4:]
except Exception as e:
    text = ""
    

if text:
    do_something()

Upvotes: 2

Views: 1535

Answers (1)

Lonami
Lonami

Reputation: 7141

If you have a handler defined in the following way:

@client.on(events.NewMessage(pattern=r'!raw (\w+)'))
async def handler(event):
    ...

You can then access the event.pattern_match:

arg = event.pattern_match.group(1)
print(arg)  # first word

However, using .split() is also okay:

parts = event.raw_text.split()
if len(parts) > 1:
    arg = parts[1]

(And you can also build a better UX, by telling the user when they used the command wrong.)

Upvotes: 4

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