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Allow empty iterables as a command_prefix

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Jonah Lawrence 2022-03-30 18:07:44 -06:00 committed by GitHub
parent b1fb5ed3d7
commit caac97c0d1
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1 changed files with 2 additions and 5 deletions
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discord/ext/commands/bot.py
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@ -1081,6 +1081,7 @@ class BotBase(GroupMixin[None]):
listening for. listening for.
""" """
prefix = ret = self.command_prefix prefix = ret = self.command_prefix
if callable(prefix): if callable(prefix):
# self will be a Bot or AutoShardedBot # self will be a Bot or AutoShardedBot
ret = await discord.utils.maybe_coroutine(prefix, self, message) # type: ignore ret = await discord.utils.maybe_coroutine(prefix, self, message) # type: ignore
@ -1099,9 +1100,6 @@ class BotBase(GroupMixin[None]):
f"returning either of these, not {ret.__class__.__name__}" f"returning either of these, not {ret.__class__.__name__}"
) )
if not ret:
raise ValueError("Iterable command_prefix must contain at least one prefix")
return ret return ret
@overload @overload
@ -1312,8 +1310,7 @@ class Bot(BotBase, discord.Client):
The command prefix could also be an iterable of strings indicating that The command prefix could also be an iterable of strings indicating that
multiple checks for the prefix should be used and the first one to multiple checks for the prefix should be used and the first one to
match will be the invocation prefix. You can get this prefix via match will be the invocation prefix. You can get this prefix via
:attr:`.Context.prefix`. To avoid confusion empty iterables are not :attr:`.Context.prefix`.
allowed.
.. note:: .. note::