forked from LBRYCommunity/lbry-sdk
69 lines
2 KiB
Python
69 lines
2 KiB
Python
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# -*- coding: utf-8 -*-
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# Copyright 2016-2017 Ionuț Arțăriși <ionut@artarisi.eu>
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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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# http://www.apache.org/licenses/LICENSE-2.0
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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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# This came from https://github.com/mapleoin/undecorated
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from inspect import isfunction, ismethod, isclass
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__version__ = '0.3.0'
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def undecorated(o):
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"""Remove all decorators from a function, method or class"""
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# class decorator
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if type(o) is type:
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return o
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try:
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# python2
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closure = o.func_closure
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except AttributeError:
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pass
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# try:
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# # python3
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# closure = o.__closure__
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# except AttributeError:
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# return
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if closure:
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for cell in closure:
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# avoid infinite recursion
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if cell.cell_contents is o:
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continue
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# check if the contents looks like a decorator; in that case
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# we need to go one level down into the dream, otherwise it
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# might just be a different closed-over variable, which we
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# can ignore.
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# Note: this favors supporting decorators defined without
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# @wraps to the detriment of function/method/class closures
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if looks_like_a_decorator(cell.cell_contents):
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undecd = undecorated(cell.cell_contents)
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if undecd:
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return undecd
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else:
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return o
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else:
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return o
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def looks_like_a_decorator(a):
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return (
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isfunction(a) or ismethod(a) or isclass(a)
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)
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