40 lines
1.3 KiB
40 lines
1.3 KiB
# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import functools
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import sys
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__all__ = ['deprecated']
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def deprecated(since, instead, extra_message=""):
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def decorator(func):
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err_msg = "API {0} is deprecated since {1}. Please use {2} instead.".format(
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func.__name__, since, instead)
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if len(extra_message) != 0:
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err_msg += "\n"
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err_msg += extra_message
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@functools.wraps(func)
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def wrapper(*args, **kwargs):
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print(err_msg, file=sys.stderr)
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return func(*args, **kwargs)
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wrapper.__doc__ += "\n "
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wrapper.__doc__ += err_msg
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return wrapper
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return decorator
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