126 lines
3.2 KiB
Python
126 lines
3.2 KiB
Python
##############################################################################
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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 for builtin types.
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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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from __future__ import absolute_import
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from zope.interface import classImplements
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from zope.interface.common import collections
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from zope.interface.common import numbers
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from zope.interface.common import io
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__all__ = [
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'IList',
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'ITuple',
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'ITextString',
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'IByteString',
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'INativeString',
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'IBool',
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'IDict',
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'IFile',
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]
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# pylint:disable=no-self-argument
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class IList(collections.IMutableSequence):
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"""
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Interface for :class:`list`
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"""
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extra_classes = (list,)
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def sort(key=None, reverse=False):
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"""
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Sort the list in place and return None.
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*key* and *reverse* must be passed by name only.
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"""
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class ITuple(collections.ISequence):
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"""
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Interface for :class:`tuple`
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"""
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extra_classes = (tuple,)
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class ITextString(collections.ISequence):
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"""
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Interface for text (unicode) strings.
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On Python 2, this is :class:`unicode`. On Python 3,
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this is :class:`str`
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"""
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extra_classes = (type(u'unicode'),)
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class IByteString(collections.IByteString):
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"""
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Interface for immutable byte strings.
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On all Python versions this is :class:`bytes`.
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Unlike :class:`zope.interface.common.collections.IByteString`
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(the parent of this interface) this does *not* include
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:class:`bytearray`.
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"""
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extra_classes = (bytes,)
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class INativeString(IByteString if str is bytes else ITextString):
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"""
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Interface for native strings.
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On all Python versions, this is :class:`str`. On Python 2,
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this extends :class:`IByteString`, while on Python 3 it extends
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:class:`ITextString`.
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"""
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# We're not extending ABCInterface so extra_classes won't work
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classImplements(str, INativeString)
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class IBool(numbers.IIntegral):
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"""
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Interface for :class:`bool`
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"""
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extra_classes = (bool,)
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class IDict(collections.IMutableMapping):
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"""
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Interface for :class:`dict`
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"""
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extra_classes = (dict,)
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class IFile(io.IIOBase):
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"""
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Interface for :class:`file`.
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It is recommended to use the interfaces from :mod:`zope.interface.common.io`
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instead of this interface.
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On Python 3, there is no single implementation of this interface;
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depending on the arguments, the :func:`open` builtin can return
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many different classes that implement different interfaces from
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:mod:`zope.interface.common.io`.
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"""
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try:
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extra_classes = (file,)
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except NameError:
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extra_classes = ()
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