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Fix and enhance "no workers set" warning

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This commit is contained in:
Lonami Exo 2017-10-21 13:47:54 +02:00
parent 9937d58a2d
commit 7596f2b797
1 changed files with 6 additions and 2 deletions
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8
telethon/telegram_bare_client.py
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@ -756,8 +756,12 @@ class TelegramBareClient:
def add_update_handler(self, handler):
"""Adds an update handler (a function which takes a TLObject,
an update, as its parameter) and listens for updates"""
if not self.updates.get_workers:
warnings.warn("There are no update workers running, so adding an update handler will have no effect.")
if self.updates.workers is None:
warnings.warn(
"You have not setup any workers, so you won't receive updates."
" Pass update_workers=4 when creating the TelegramClient,"
" or set client.self.updates.workers = 4"
)
self.updates.handlers.append(handler)