hydrogram/hydrogram/methods/decorators/on_error.py at stable · hydrogram/hydrogram

49 lines (39 loc) · 1.79 KB

# Hydrogram - Telegram MTProto API Client Library for Python

# This file is part of Hydrogram.

# Hydrogram is free software: you can redistribute it and/or modify

# it under the terms of the GNU Lesser General Public License as published

# by the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

# Hydrogram is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public License

# along with Hydrogram. If not, see <http://www.gnu.org/licenses/>.

from typing import Callable

import hydrogram

from hydrogram.filters import Filter

class OnError:

def on_error(self=None, errors=None) -> Callable:

"""Decorator for handling new errors.

This does the same thing as :meth:`~hydrogram.Client.add_handler` using the

:obj:`~hydrogram.handlers.MessageHandler`.

Parameters:

errors (:obj:`~Exception`, *optional*):

Pass one or more errors to allow only a subset of errors to be passed

in your function.

"""

def decorator(func: Callable) -> Callable:

if isinstance(self, hydrogram.Client):

self.add_handler(hydrogram.handlers.ErrorHandler(func, errors), 0)

elif isinstance(self, Filter) or self is None:

if not hasattr(func, "handlers"):

func.handlers = []

func.handlers.append((hydrogram.handlers.ErrorHandler(func, self), 0))

return func

return decorator

Provide feedback