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Commit 840ae3d6 authored by Tim Peters's avatar Tim Peters
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Prepare to fetch Zope3 code from the same place Zope trunk gets it.

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src/zope/interface/PUBLICATION.cfg deleted 100644 → 0
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Metadata-Version: 1.0
Name: zope.interface
Summary: Zope 3 Interface Infrastructure
Author: Zope Corporation and Contributors
Author-email: zope3-dev@zope.org
License: ZPL 2.1
Description:
The implementation of interface definitions for Zope 3.
src/zope/interface/README.txt deleted 100644 → 0
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src/zope/interface/SETUP.cfg deleted 100644 → 0
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# Extension information for zpkg:
<extension _zope_interface_coptimizations>
source _zope_interface_coptimizations.c
</extension>
src/zope/interface/__init__.py deleted 100644 → 0
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##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation 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.
#
##############################################################################
"""Interfaces
This package implements the Python "scarecrow" proposal.
The package exports two objects, `Interface` and `Attribute` directly. It also
exports several helper methods. Interface is used to create an interface with
a class statement, as in:
class IMyInterface(Interface):
'''Interface documentation
'''
def meth(arg1, arg2):
'''Documentation for meth
'''
# Note that there is no self argument
To find out what you can do with interfaces, see the interface
interface, `IInterface` in the `interfaces` module.
The package has several public modules:
o `declarations` provides utilities to declare interfaces on objects. It
also provides a wide range of helpful utilities that aid in managing
declared interfaces. Most of its public names are however imported here.
o `document` has a utility for documenting an interface as structured text.
o `exceptions` has the interface-defined exceptions
o `interfaces` contains a list of all public interfaces for this package.
o `verify` has utilities for verifying implementations of interfaces.
See the module doc strings for more information.
$Id$
"""
__docformat__ = 'restructuredtext'
from zope.interface.interface import Interface, _wire
# Need to actually get the interface elements to implement the right interfaces
_wire()
del _wire
from zope.interface.interface import Attribute, invariant
from zope.interface.declarations import providedBy, implementedBy
from zope.interface.declarations import classImplements, classImplementsOnly
from zope.interface.declarations import directlyProvidedBy, directlyProvides
from zope.interface.declarations import alsoProvides, implementer
from zope.interface.declarations import implements, implementsOnly
from zope.interface.declarations import classProvides, moduleProvides
from zope.interface.declarations import Declaration
from zope.interface.exceptions import Invalid
# The following are to make spec pickles cleaner
from zope.interface.declarations import Provides
from zope.interface.interfaces import IInterfaceDeclaration
moduleProvides(IInterfaceDeclaration)
__all__ = ('Interface', 'Attribute') + tuple(IInterfaceDeclaration)
src/zope/interface/_flatten.py deleted 100644 → 0
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##############################################################################
#
# Copyright (c) 2002 Zope Corporation 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.
#
##############################################################################
"""Adapter-style interface registry
See Adapter class.
$Id$
"""
from zope.interface import Declaration
def _flatten(implements, include_None=0):
try:
r = implements.flattened()
except AttributeError:
if implements is None:
r=()
else:
r = Declaration(implements).flattened()
if not include_None:
return r
r = list(r)
r.append(None)
return r
src/zope/interface/_zope_interface_coptimizations.c deleted 100644 → 0
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src/zope/interface/adapter.py deleted 100644 → 0
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src/zope/interface/adapter.txt deleted 100644 → 0
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src/zope/interface/advice.py deleted 100644 → 0
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##############################################################################
#
# Copyright (c) 2003 Zope Corporation 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.
#
##############################################################################
"""Class advice.
This module was adapted from 'protocols.advice', part of the Python
Enterprise Application Kit (PEAK). Please notify the PEAK authors
(pje@telecommunity.com and tsarna@sarna.org) if bugs are found or
Zope-specific changes are required, so that the PEAK version of this module
can be kept in sync.
PEAK is a Python application framework that interoperates with (but does
not require) Zope 3 and Twisted. It provides tools for manipulating UML
models, object-relational persistence, aspect-oriented programming, and more.
Visit the PEAK home page at http://peak.telecommunity.com for more information.
$Id$
"""
from types import ClassType, FunctionType
import sys
def getFrameInfo(frame):
"""Return (kind,module,locals,globals) for a frame
'kind' is one of "exec", "module", "class", "function call", or "unknown".
"""
f_locals = frame.f_locals
f_globals = frame.f_globals
sameNamespace = f_locals is f_globals
hasModule = '__module__' in f_locals
hasName = '__name__' in f_globals
sameName = hasModule and hasName
sameName = sameName and f_globals['__name__']==f_locals['__module__']
module = hasName and sys.modules.get(f_globals['__name__']) or None
namespaceIsModule = module and module.__dict__ is f_globals
if not namespaceIsModule:
# some kind of funky exec
kind = "exec"
elif sameNamespace and not hasModule:
kind = "module"
elif sameName and not sameNamespace:
kind = "class"
elif not sameNamespace:
kind = "function call"
else:
# How can you have f_locals is f_globals, and have '__module__' set?
# This is probably module-level code, but with a '__module__' variable.
kind = "unknown"
return kind, module, f_locals, f_globals
def addClassAdvisor(callback, depth=2):
"""Set up 'callback' to be passed the containing class upon creation
This function is designed to be called by an "advising" function executed
in a class suite. The "advising" function supplies a callback that it
wishes to have executed when the containing class is created. The
callback will be given one argument: the newly created containing class.
The return value of the callback will be used in place of the class, so
the callback should return the input if it does not wish to replace the
class.
The optional 'depth' argument to this function determines the number of
frames between this function and the targeted class suite. 'depth'
defaults to 2, since this skips this function's frame and one calling
function frame. If you use this function from a function called directly
in the class suite, the default will be correct, otherwise you will need
to determine the correct depth yourself.
This function works by installing a special class factory function in
place of the '__metaclass__' of the containing class. Therefore, only
callbacks *after* the last '__metaclass__' assignment in the containing
class will be executed. Be sure that classes using "advising" functions
declare any '__metaclass__' *first*, to ensure all callbacks are run."""
frame = sys._getframe(depth)
kind, module, caller_locals, caller_globals = getFrameInfo(frame)
# This causes a problem when zope interfaces are used from doctest.
# In these cases, kind == "exec".
#
#if kind != "class":
# raise SyntaxError(
# "Advice must be in the body of a class statement"
# )
previousMetaclass = caller_locals.get('__metaclass__')
defaultMetaclass = caller_globals.get('__metaclass__', ClassType)
def advise(name, bases, cdict):
if '__metaclass__' in cdict:
del cdict['__metaclass__']
if previousMetaclass is None:
if bases:
# find best metaclass or use global __metaclass__ if no bases
meta = determineMetaclass(bases)
else:
meta = defaultMetaclass
elif isClassAdvisor(previousMetaclass):
# special case: we can't compute the "true" metaclass here,
# so we need to invoke the previous metaclass and let it
# figure it out for us (and apply its own advice in the process)
meta = previousMetaclass
else:
meta = determineMetaclass(bases, previousMetaclass)
newClass = meta(name,bases,cdict)
# this lets the callback replace the class completely, if it wants to
return callback(newClass)
# introspection data only, not used by inner function
advise.previousMetaclass = previousMetaclass
advise.callback = callback
# install the advisor
caller_locals['__metaclass__'] = advise
def isClassAdvisor(ob):
"""True if 'ob' is a class advisor function"""
return isinstance(ob,FunctionType) and hasattr(ob,'previousMetaclass')
def determineMetaclass(bases, explicit_mc=None):
"""Determine metaclass from 1+ bases and optional explicit __metaclass__"""
meta = [getattr(b,'__class__',type(b)) for b in bases]
if explicit_mc is not None:
# The explicit metaclass needs to be verified for compatibility
# as well, and allowed to resolve the incompatible bases, if any
meta.append(explicit_mc)
if len(meta)==1:
# easy case
return meta[0]
candidates = minimalBases(meta) # minimal set of metaclasses
if not candidates:
# they're all "classic" classes
return ClassType
elif len(candidates)>1:
# We could auto-combine, but for now we won't...
raise TypeError("Incompatible metatypes",bases)
# Just one, return it
return candidates[0]
def minimalBases(classes):
"""Reduce a list of base classes to its ordered minimum equivalent"""
classes = [c for c in classes if c is not ClassType]
candidates = []
for m in classes:
for n in classes:
if issubclass(n,m) and m is not n:
break
else:
# m has no subclasses in 'classes'
if m in candidates:
candidates.remove(m) # ensure that we're later in the list
candidates.append(m)
return candidates
src/zope/interface/common/__init__.py deleted 100644 → 0
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#
# This file is necessary to make this directory a package.
src/zope/interface/common/idatetime.py deleted 100644 → 0
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src/zope/interface/common/interfaces.py deleted 100644 → 0
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##############################################################################
#
# Copyright (c) 2003 Zope Corporation 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.
#
##############################################################################
"""Interfaces for standard python exceptions
$Id$
"""
from zope.interface import Interface
from zope.interface import classImplements
class IException(Interface): pass
class IStandardError(IException): pass
class IWarning(IException): pass
class ISyntaxError(IStandardError): pass
class ILookupError(IStandardError): pass
class IValueError(IStandardError): pass
class IRuntimeError(IStandardError): pass
class IArithmeticError(IStandardError): pass
class IAssertionError(IStandardError): pass
class IAttributeError(IStandardError): pass
class IDeprecationWarning(IWarning): pass
class IEOFError(IStandardError): pass
class IEnvironmentError(IStandardError): pass
class IFloatingPointError(IArithmeticError): pass
class IIOError(IEnvironmentError): pass
class IImportError(IStandardError): pass
class IIndentationError(ISyntaxError): pass
class IIndexError(ILookupError): pass
class IKeyError(ILookupError): pass
class IKeyboardInterrupt(IStandardError): pass
class IMemoryError(IStandardError): pass
class INameError(IStandardError): pass
class INotImplementedError(IRuntimeError): pass
class IOSError(IEnvironmentError): pass
class IOverflowError(IArithmeticError): pass
class IOverflowWarning(IWarning): pass
class IReferenceError(IStandardError): pass
class IRuntimeWarning(IWarning): pass
class IStopIteration(IException): pass
class ISyntaxWarning(IWarning): pass
class ISystemError(IStandardError): pass
class ISystemExit(IException): pass
class ITabError(IIndentationError): pass
class ITypeError(IStandardError): pass
class IUnboundLocalError(INameError): pass
class IUnicodeError(IValueError): pass
class IUserWarning(IWarning): pass
class IZeroDivisionError(IArithmeticError): pass
classImplements(ArithmeticError, IArithmeticError)
classImplements(AssertionError, IAssertionError)
classImplements(AttributeError, IAttributeError)
classImplements(DeprecationWarning, IDeprecationWarning)
classImplements(EnvironmentError, IEnvironmentError)
classImplements(EOFError, IEOFError)
classImplements(Exception, IException)
classImplements(FloatingPointError, IFloatingPointError)
classImplements(ImportError, IImportError)
classImplements(IndentationError, IIndentationError)
classImplements(IndexError, IIndexError)
classImplements(IOError, IIOError)
classImplements(KeyboardInterrupt, IKeyboardInterrupt)
classImplements(KeyError, IKeyError)
classImplements(LookupError, ILookupError)
classImplements(MemoryError, IMemoryError)
classImplements(NameError, INameError)
classImplements(NotImplementedError, INotImplementedError)
classImplements(OSError, IOSError)
classImplements(OverflowError, IOverflowError)
classImplements(OverflowWarning, IOverflowWarning)
classImplements(ReferenceError, IReferenceError)
classImplements(RuntimeError, IRuntimeError)
classImplements(RuntimeWarning, IRuntimeWarning)
classImplements(StandardError, IStandardError)
classImplements(StopIteration, IStopIteration)
classImplements(SyntaxError, ISyntaxError)
classImplements(SyntaxWarning, ISyntaxWarning)
classImplements(SystemError, ISystemError)
classImplements(SystemExit, ISystemExit)
classImplements(TabError, ITabError)
classImplements(TypeError, ITypeError)
classImplements(UnboundLocalError, IUnboundLocalError)
classImplements(UnicodeError, IUnicodeError)
classImplements(UserWarning, IUserWarning)
classImplements(ValueError, IValueError)
classImplements(Warning, IWarning)
classImplements(ZeroDivisionError, IZeroDivisionError)
src/zope/interface/common/mapping.py deleted 100644 → 0
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##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation 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.
#
##############################################################################
"""Mapping Interfaces
$Id$
"""
from zope.interface import Interface
class IItemMapping(Interface):
"""Simplest readable mapping object
"""
def __getitem__(key):
"""Get a value for a key
A KeyError is raised if there is no value for the key.
"""
class IReadMapping(IItemMapping):
"""Basic mapping interface
"""
def get(key, default=None):
"""Get a value for a key
The default is returned if there is no value for the key.
"""
def __contains__(key):
"""Tell if a key exists in the mapping."""
class IWriteMapping(Interface):
"""Mapping methods for changing data"""
def __delitem__(key):
"""Delete a value from the mapping using the key."""
def __setitem__(key, value):
"""Set a new item in the mapping."""
class IEnumerableMapping(IReadMapping):
"""Mapping objects whose items can be enumerated.
"""
def keys():
"""Return the keys of the mapping object.
"""
def __iter__():
"""Return an iterator for the keys of the mapping object.
"""
def values():
"""Return the values of the mapping object.
"""
def items():
"""Return the items of the mapping object.
"""
def __len__():
"""Return the number of items.
"""
class IMapping(IWriteMapping, IEnumerableMapping):
''' Simple mapping interface '''
class IIterableMapping(IEnumerableMapping):
def iterkeys():
"iterate over keys; equivalent to __iter__"
def itervalues():
"iterate over values"
def iteritems():
"iterate over items"
class IClonableMapping(Interface):
def copy():
"return copy of dict"
class IExtendedReadMapping(IIterableMapping):
def has_key(key):
"""Tell if a key exists in the mapping; equivalent to __contains__"""
class IExtendedWriteMapping(IWriteMapping):
def clear():
"delete all items"
def update(d):
" Update D from E: for k in E.keys(): D[k] = E[k]"
def setdefault(key, default=None):
"D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D"
def pop(k, *args):
"""remove specified key and return the corresponding value
*args may contain a single default value, or may not be supplied.
If key is not found, default is returned if given, otherwise
KeyError is raised"""
def popitem():
"""remove and return some (key, value) pair as a
2-tuple; but raise KeyError if mapping is empty"""
class IFullMapping(
IExtendedReadMapping, IExtendedWriteMapping, IClonableMapping, IMapping):
''' Full mapping interface ''' # IMapping included so tests for IMapping
# succeed with IFullMapping
src/zope/interface/common/sequence.py deleted 100644 → 0
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##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation 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.
#
##############################################################################
"""Sequence Interfaces
$Id$
"""
from zope import interface
class IReadSequence(interface.Interface):
"read interface shared by tuple and list"
def __getitem__(index):
"x.__getitem__(index) <==> x[index]"
def __iter__():
"x.__iter__() <==> iter(x)"
def __contains__(item):
"x.__contains__(item) <==> item in x"
def __lt__(other):
"x.__lt__(other) <==> x<other"
def __le__(other):
"x.__le__(other) <==> x<=other"
def __eq__(other):
"x.__eq__(other) <==> x==other"
def __ne__(other):
"x.__ne__(other) <==> x!=other"
def __gt__(other):
"x.__gt__(other) <==> x>other"
def __ge__(other):
"x.__ge__(other) <==> x>=other"
def __len__():
"x.__len__() <==> len(x)"
def __add__(other):
"x.__add__(other) <==> x+other"
def __mul__(n):
"x.__mul__(n) <==> x*n"
def __rmul__(n):
"x.__rmul__(n) <==> n*x"
def __getslice__(i, j):
"""x.__getslice__(i, j) <==> x[i:j]
Use of negative indices is not supported.
"""
class IExtendedReadSequence(IReadSequence):
"Full read interface for lists"
def count(item):
"return number of occurrences of value"
def index(item, *args):
"""return first index of value
L.index(value, [start, [stop]]) -> integer"""
class IUniqueMemberWriteSequence(interface.Interface):
"The write contract for a sequence that may enforce unique members"
def __setitem__(index, item):
"x.__setitem__(index, item) <==> x[index]=item"
def __delitem__(index):
"x.__delitem__(index) <==> del x[index]"
def __setslice__(i, j, other):
"""x.__setslice__(i, j, other) <==> x[i:j]=other
Use of negative indices is not supported."""
def __delslice__(i, j):
"""x.__delslice__(i, j) <==> del x[i:j]
Use of negative indices is not supported.
"""
def __iadd__(y):
"x.__iadd__(y) <==> x+=y"
def append(item):
"append item to end"
def insert(index, item):
"insert item before index"
def pop(index=-1):
"remove and return item at index (default last)"
def remove(item):
"remove first occurrence of value"
def reverse():
"reverse *IN PLACE*"
def sort(cmpfunc=None):
"""stable sort *IN PLACE*; cmpfunc(x, y) -> -1, 0, 1"""
def extend(iterable):
"extend list by appending elements from the iterable"
class IWriteSequence(IUniqueMemberWriteSequence):
"Full write contract for sequences"
def __imul__(n):
"x.__imul__(n) <==> x*=n"
class ISequence(IReadSequence, IWriteSequence):
"Full sequence contract"
src/zope/interface/common/tests/__init__.py deleted 100644 → 0
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#
# This file is necessary to make this directory a package.
src/zope/interface/common/tests/basemapping.py deleted 100644 → 0
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##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation 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.
#
##############################################################################
"""Base Mapping tests
$Id$
"""
from operator import __getitem__
def testIReadMapping(self, inst, state, absent):
for key in state:
self.assertEqual(inst[key], state[key])
self.assertEqual(inst.get(key, None), state[key])
self.failUnless(key in inst)
for key in absent:
self.assertEqual(inst.get(key, None), None)
self.assertEqual(inst.get(key), None)
self.assertEqual(inst.get(key, self), self)
self.assertRaises(KeyError, __getitem__, inst, key)
def test_keys(self, inst, state):
# Return the keys of the mapping object
inst_keys = list(inst.keys()); inst_keys.sort()
state_keys = list(state.keys()) ; state_keys.sort()
self.assertEqual(inst_keys, state_keys)
def test_iter(self, inst, state):
# Return the keys of the mapping object
inst_keys = list(inst); inst_keys.sort()
state_keys = list(state.keys()) ; state_keys.sort()
self.assertEqual(inst_keys, state_keys)
def test_values(self, inst, state):
# Return the values of the mapping object
inst_values = list(inst.values()); inst_values.sort()
state_values = list(state.values()) ; state_values.sort()
self.assertEqual(inst_values, state_values)
def test_items(self, inst, state):
# Return the items of the mapping object
inst_items = list(inst.items()); inst_items.sort()
state_items = list(state.items()) ; state_items.sort()
self.assertEqual(inst_items, state_items)
def test___len__(self, inst, state):
# Return the number of items
self.assertEqual(len(inst), len(state))
def testIEnumerableMapping(self, inst, state):
test_keys(self, inst, state)
test_items(self, inst, state)
test_values(self, inst, state)
test___len__(self, inst, state)
class BaseTestIReadMapping(object):
def testIReadMapping(self):
inst = self._IReadMapping__sample()
state = self._IReadMapping__stateDict()
absent = self._IReadMapping__absentKeys()
testIReadMapping(self, inst, state, absent)
class BaseTestIEnumerableMapping(BaseTestIReadMapping):
# Mapping objects whose items can be enumerated
def test_keys(self):
# Return the keys of the mapping object
inst = self._IEnumerableMapping__sample()
state = self._IEnumerableMapping__stateDict()
test_keys(self, inst, state)
def test_values(self):
# Return the values of the mapping object
inst = self._IEnumerableMapping__sample()
state = self._IEnumerableMapping__stateDict()
test_values(self, inst, state)
def test_values(self):
# Return the values of the mapping object
inst = self._IEnumerableMapping__sample()
state = self._IEnumerableMapping__stateDict()
test_iter(self, inst, state)
def test_items(self):
# Return the items of the mapping object
inst = self._IEnumerableMapping__sample()
state = self._IEnumerableMapping__stateDict()
test_items(self, inst, state)
def test___len__(self):
# Return the number of items
inst = self._IEnumerableMapping__sample()
state = self._IEnumerableMapping__stateDict()
test___len__(self, inst, state)
def _IReadMapping__stateDict(self):
return self._IEnumerableMapping__stateDict()
def _IReadMapping__sample(self):
return self._IEnumerableMapping__sample()
def _IReadMapping__absentKeys(self):
return self._IEnumerableMapping__absentKeys()
src/zope/interface/common/tests/test_idatetime.py deleted 100644 → 0
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##############################################################################
#
# Copyright (c) 2003 Zope Corporation 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.
#
##############################################################################
"""Test for datetime interfaces
$Id$
"""
import unittest
from zope.interface.verify import verifyObject, verifyClass
from zope.interface.common.idatetime import ITimeDelta, ITimeDeltaClass
from zope.interface.common.idatetime import IDate, IDateClass
from zope.interface.common.idatetime import IDateTime, IDateTimeClass
from zope.interface.common.idatetime import ITime, ITimeClass, ITZInfo
from datetime import timedelta, date, datetime, time, tzinfo
class TestDateTimeInterfaces(unittest.TestCase):
def test_interfaces(self):
verifyObject(ITimeDelta, timedelta(minutes=20))
verifyObject(IDate, date(2000, 1, 2))
verifyObject(IDateTime, datetime(2000, 1, 2, 10, 20))
verifyObject(ITime, time(20, 30, 15, 1234))
verifyObject(ITZInfo, tzinfo())
verifyClass(ITimeDeltaClass, timedelta)
verifyClass(IDateClass, date)
verifyClass(IDateTimeClass, datetime)
verifyClass(ITimeClass, time)
def test_suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(TestDateTimeInterfaces))
return suite
if __name__ == '__main__':
unittest.main()
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##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation 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.
#
##############################################################################
""" Pretty-Print an Interface object as structured text (Yum)
This module provides a function, asStructuredText, for rendering an
interface as structured text.
$Id$
"""
from string import maketrans
import zope.interface
def asStructuredText(I, munge=0):
""" Output structured text format. Note, this will wack any existing
'structured' format of the text. """
r = ["%s\n\n" % I.getName()]
outp = r.append
level = 1
if I.getDoc():
outp(_justify_and_indent(_trim_doc_string(I.getDoc()), level)+ "\n\n")
bases = [base
for base in I.__bases__
if base is not zope.interface.Interface
]
if bases:
outp((" " * level) + "This interface extends:\n\n")
level = level + 1
for b in bases:
item = "o %s" % b.getName()
outp(_justify_and_indent(_trim_doc_string(item), level, munge)
+ "\n\n")
level = level - 1
outp(_justify_and_indent("Attributes:", level, munge)+'\n\n')
level = level + 1
namesAndDescriptions = I.namesAndDescriptions()
namesAndDescriptions.sort()
for name, desc in namesAndDescriptions:
if not hasattr(desc, 'getSignatureString'): # ugh...
item = "%s -- %s" % (desc.getName(),
desc.getDoc() or 'no documentation')
outp(_justify_and_indent(_trim_doc_string(item), level, munge)
+ "\n\n")
level = level - 1
outp(_justify_and_indent("Methods:", level, munge)+'\n\n')
level = level + 1
for name, desc in namesAndDescriptions:
if hasattr(desc, 'getSignatureString'): # ugh...
item = "%s%s -- %s" % (desc.getName(),
desc.getSignatureString(),
desc.getDoc() or 'no documentation')
outp(_justify_and_indent(_trim_doc_string(item), level, munge)
+ "\n\n")
return "".join(r)
def _trim_doc_string(text):
"""
Trims a doc string to make it format
correctly with structured text.
"""
text = text.strip().replace('\r\n', '\n')
lines = text.split('\n')
nlines = [lines[0]]
if len(lines) > 1:
min_indent=None
for line in lines[1:]:
indent=len(line) - len(line.lstrip())
if indent < min_indent or min_indent is None:
min_indent=indent
for line in lines[1:]:
nlines.append(line[min_indent:])
return '\n'.join(nlines)
_trans = maketrans("\r\n", " ")
def _justify_and_indent(text, level, munge=0, width=72):
""" indent and justify text, rejustify (munge) if specified """
lines = []
if munge:
line = " " * level
text = text.translate(text, _trans).strip().split()
for word in text:
line = ' '.join([line, word])
if len(line) > width:
lines.append(line)
line = " " * level
else:
lines.append(line)
return "\n".join(lines)
else:
text = text.replace("\r\n", "\n").split("\n")
for line in text:
lines.append((" " * level) + line)
return '\n'.join(lines)
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##############################################################################
#
# Copyright (c) 2002 Zope Corporation 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.
#
##############################################################################
"""Interface-specific exceptions
$Id$
"""
class Invalid(Exception):
"""An specification is violated
"""
class DoesNotImplement(Invalid):
""" This object does not implement """
def __init__(self, interface):
self.interface = interface
def __str__(self):
return """An object does not implement interface %(interface)s
""" % self.__dict__
class BrokenImplementation(Invalid):
"""An attribute is not completely implemented.
"""
def __init__(self, interface, name):
self.interface=interface
self.name=name
def __str__(self):
return """An object has failed to implement interface %(interface)s
The %(name)s attribute was not provided.
""" % self.__dict__
class BrokenMethodImplementation(Invalid):
"""An method is not completely implemented.
"""
def __init__(self, method, mess):
self.method=method
self.mess=mess
def __str__(self):
return """The implementation of %(method)s violates its contract
because %(mess)s.
""" % self.__dict__
class InvalidInterface(Exception):
"""The interface has invalid contents
"""
class BadImplements(TypeError):
"""An implementation assertion is invalid
because it doesn't contain an interface or a sequence of valid
implementation assertions.
"""
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==========================
Using the Adapter Registry
==========================
This is a small demonstration of the zope.interface package including its
adapter registry. It is intended to provide a concrete but narrow example on
how to use interfaces and adapters outside of Zope 3.
First we have to import the interface package.
>>> import zope.interface
We now develop an interface for our object, which is a simple file in this
case. For now we simply support one attribute, the body, which contains the
actual file contents.
>>> class IFile(zope.interface.Interface):
...
... body = zope.interface.Attribute('Contents of the file.')
...
For statistical reasons we often want to know the size of a file. However, it
would be clumsy to implement the size directly in the file object, since the
size really represents meta-data. Thus we create another interface that
provides the size of something.
>>> class ISize(zope.interface.Interface):
...
... def getSize():
... 'Return the size of an object.'
...
Now we need to implement the file. It is essential that the object states
that it implements the `IFile` interface. We also provide a default body
value (just to make things simpler for this example).
>>> class File(object):
...
... zope.interface.implements(IFile)
... body = 'foo bar'
...
Next we implement an adapter that can provide the `ISize` interface given any
object providing `IFile`. By convention we use `__used_for__` to specify the
interface that we expect the adapted object to provide, in our case
`IFile`. However, this attribute is not used for anything. If you have
multiple interfaces for which an adapter is used, just specify the interfaces
via a tuple.
Again by convention, the constructor of an adapter takes one argument, the
context. The context in this case is an instance of `File` (providing `IFile`)
that is used to extract the size from. Also by convention the context is
stored in an attribute named `context` on the adapter. The twisted community
refers to the context as the `original` object. However, you may feel free to
use a specific argument name, such as `file`.
>>> class FileSize(object):
...
... zope.interface.implements(ISize)
... __used_for__ = IFile
...
... def __init__(self, context):
... self.context = context
...
... def getSize(self):
... return len(self.context.body)
...
Now that we have written our adapter, we have to register it with an adapter
registry, so that it can be looked up when needed. There is no such thing as a
global registry; thus we have to instantiate one for our example manually.
>>> from zope.interface.adapter import AdapterRegistry
>>> registry = AdapterRegistry()
The registry keeps a map of what adapters implement based on another
interface, the object already provides. Therefore, we next have to register an
adapter that adapts from `IFile` to `ISize`. The first argument to
the registry's `register()` method is a list of original interfaces.In our
cause we have only one original interface, `IFile`. A list makes sense, since
the interface package has the concept of multi-adapters, which are adapters
that require multiple objects to adapt to a new interface. In these
situations, your adapter constructor will require an argument for each
specified interface.
The second argument is the interface the adapter provides, in our case
`ISize`. The third argument in the name of the adapter. Since we do not care
about names, we simply leave it as an empty string. Names are commonly useful,
if you have adapters for the same set of interfaces, but they are useful in
different situations. The last argument is simply the adapter class.
>>> registry.register([IFile], ISize, '', FileSize)
You can now use the the registry to lookup the adapter.
>>> registry.lookup1(IFile, ISize, '')
<class '__main__.FileSize'>
Let's get a little bit more practical. Let's create a `File` instance and
create the adapter using a registry lookup. Then we see whether the adapter
returns the correct size by calling `getSize()`.
>>> file = File()
>>> size = registry.lookup1(IFile, ISize, '')(file)
>>> size.getSize()
7
However, this is not very practical, since I have to manually pass in the
arguments to the lookup method. There is some syntactic candy that will allow
us to get an adapter instance by simply calling `ISize(file)`. To make use of
this functionality, we need to add our registry to the adapter_hooks list,
which is a member of the adapters module. This list stores a collection of
callables that are automatically invoked when IFoo(obj) is called; their
purpose is to locate adapters that implement an interface for a certain
context instance.
You are required to implement your own adapter hook; this example covers one
of the simplest hooks that use the registry, but you could implement one that
used an adapter cache or persistent adapters, for instance. The helper hook is
required to expect as first argument the desired output interface (for us
`ISize`) and as the second argument the context of the adapter (here
`file`). The function returns an adapter, i.e. a `FileSize` instance.
>>> def hook(provided, object):
... adapter = registry.lookup1(zope.interface.providedBy(object),
... provided, '')
... return adapter(object)
...
We now just add the hook to an `adapter_hooks` list.
>>> from zope.interface.interface import adapter_hooks
>>> adapter_hooks.append(hook)
Once the hook is registered, you can use the desired syntax.
>>> size = ISize(file)
>>> size.getSize()
7
Now we have to cleanup after ourselves, so that others after us have a clean
`adapter_hooks` list.
>>> adapter_hooks.remove(hook)
That's it. I have intentionally left out a discussion of named adapters and
multi-adapters, since this text is intended as a practical and simple
introduction to Zope 3 interfaces and adapters. You might want to read the
`adapter.txt` in the `zope.interface` package for a more formal, referencial
and complete treatment of the package. Warning: People have reported that
`adapter.txt` makes their brain feel soft!
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##############################################################################
#
# Copyright (c) 2003 Zope Corporation 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.
#
##############################################################################
"""Compute a resolution order for an object and it's bases
$Id$
"""
def ro(object):
"""Compute a "resolution order" for an object
"""
return mergeOrderings([_flatten(object, [])])
def mergeOrderings(orderings, seen=None):
"""Merge multiple orderings so that within-ordering order is preserved
Orderings are constrained in such a way that if an object appears
in two or more orderings, then the suffix that begins with the
object must be in both orderings.
For example:
>>> _mergeOrderings([
... ['x', 'y', 'z'],
... ['q', 'z'],
... [1, 3, 5],
... ['z']
... ])
['x', 'y', 'q', 1, 3, 5, 'z']
"""
if seen is None:
seen = {}
result = []
orderings.reverse()
for ordering in orderings:
ordering = list(ordering)
ordering.reverse()
for o in ordering:
if o not in seen:
seen[o] = 1
result.append(o)
result.reverse()
return result
def _flatten(ob, result):
result.append(ob)
for base in ob.__bases__:
_flatten(base, result)
return result
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# This file is necessary to make this directory a package.
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