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50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
# -*- coding: utf-8 -*-
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# This file is part of beets.
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# Copyright 2019, Vladimir Zhelezov.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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from __future__ import absolute_import
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import inspect
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from collections import namedtuple
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from six import PY2
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ArgSpec = namedtuple('ArgSpec', 'args varargs keywords defaults')
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def getargspec(func):
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if PY2:
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return inspect.getargspec(func)
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sig = inspect.signature(func)
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args = [
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p.name for p in sig.parameters.values()
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if p.kind == inspect.Parameter.POSITIONAL_OR_KEYWORD
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]
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varargs = [
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p.name for p in sig.parameters.values()
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if p.kind == inspect.Parameter.VAR_POSITIONAL
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]
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varargs = varargs[0] if varargs else None
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varkw = [
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p.name for p in sig.parameters.values()
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if p.kind == inspect.Parameter.VAR_KEYWORD
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]
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varkw = varkw[0] if varkw else None
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defaults = tuple(p.default for p in sig.parameters.values()
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if p.kind == inspect.Parameter.POSITIONAL_OR_KEYWORD
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and p.default is not p.empty) or None
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return ArgSpec(args, varargs, varkw, defaults)
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