66 lines
1.6 KiB
Python
66 lines
1.6 KiB
Python
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##############################################################################
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# Copyright (c) 2020 Zope Foundation and Contributors.
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# All Rights Reserved.
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#
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# This software is subject to the provisions of the Zope Public License,
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# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
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# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
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# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
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# FOR A PARTICULAR PURPOSE.
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##############################################################################
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"""
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Interface definitions paralleling the abstract base classes defined in
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:mod:`numbers`.
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After this module is imported, the standard library types will declare
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that they implement the appropriate interface.
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.. versionadded:: 5.0.0
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"""
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import numbers as abc
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from zope.interface.common import ABCInterface
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from zope.interface.common import optional
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# pylint:disable=inherit-non-class,
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# pylint:disable=no-self-argument,no-method-argument
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# pylint:disable=unexpected-special-method-signature
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# pylint:disable=no-value-for-parameter
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class INumber(ABCInterface):
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abc = abc.Number
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class IComplex(INumber):
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abc = abc.Complex
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@optional
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def __complex__():
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"""
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Rarely implemented, even in builtin types.
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"""
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class IReal(IComplex):
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abc = abc.Real
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@optional
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def __complex__():
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"""
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Rarely implemented, even in builtin types.
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"""
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__floor__ = __ceil__ = __complex__
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class IRational(IReal):
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abc = abc.Rational
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class IIntegral(IRational):
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abc = abc.Integral
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