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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2018-02-22 00:25
tests	[ DIR ]	drwxr-xr-x	2018-02-22 00:25
__init__.py	1.59 KB	-rw-r--r--	2013-01-08 17:08
_zope_hookable.cpython-35m-x86_64-linux-gnu.so	10.81 KB	-rw-r--r--	2018-02-05 13:27

Rename

##############################################################################
#
# Copyright (c) 2003 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Hookable object support
"""

class _py_hookable(object):
    __slots__ = ('_original', '_implementation')
    
    def __init__(self, *args, **kw):
        if len(args) == 0 and 'implementation' in kw:
            args = (kw.pop('implementation'),)
        if kw:
            raise TypeError('Unknown keyword arguments')
        if len(args) != 1:
            raise TypeError('Exactly one argument required')
        self._original = self._implementation = args[0]

original = property(lambda self: self._original)
    implementation = property(lambda self: self._implementation)

def sethook(self, new_callable):
        old, self._implementation = self._implementation, new_callable
        return old

def reset(self):
        self._implementation = self._original

def __call__(self, *args, **kw):
        return self._implementation(*args, **kw)

hookable = _py_hookable

try:
    from ._zope_hookable import hookable
except ImportError: #pragma NO COVER
    pass