Python collections.abc.ItemsView() Examples

The following are 9 code examples of collections.abc.ItemsView(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module collections.abc , or try the search function .
Example #1
Source File: test_collections.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up 
def test_MutableMapping_subclass(self):
        # Test issue 9214
        mymap = UserDict()
        mymap['red'] = 5
        self.assertIsInstance(mymap.keys(), Set)
        self.assertIsInstance(mymap.keys(), KeysView)
        self.assertIsInstance(mymap.items(), Set)
        self.assertIsInstance(mymap.items(), ItemsView)

        mymap = UserDict()
        mymap['red'] = 5
        z = mymap.keys() | {'orange'}
        self.assertIsInstance(z, set)
        list(z)
        mymap['blue'] = 7               # Shouldn't affect 'z'
        self.assertEqual(sorted(z), ['orange', 'red'])

        mymap = UserDict()
        mymap['red'] = 5
        z = mymap.items() | {('orange', 3)}
        self.assertIsInstance(z, set)
        list(z)
        mymap['blue'] = 7               # Shouldn't affect 'z'
        self.assertEqual(sorted(z), [('orange', 3), ('red', 5)])
Example #2
Source File: test_collections.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up 
def test_MutableMapping_subclass(self):
        # Test issue 9214
        mymap = UserDict()
        mymap['red'] = 5
        self.assertIsInstance(mymap.keys(), Set)
        self.assertIsInstance(mymap.keys(), KeysView)
        self.assertIsInstance(mymap.items(), Set)
        self.assertIsInstance(mymap.items(), ItemsView)

        mymap = UserDict()
        mymap['red'] = 5
        z = mymap.keys() | {'orange'}
        self.assertIsInstance(z, set)
        list(z)
        mymap['blue'] = 7               # Shouldn't affect 'z'
        self.assertEqual(sorted(z), ['orange', 'red'])

        mymap = UserDict()
        mymap['red'] = 5
        z = mymap.items() | {('orange', 3)}
        self.assertIsInstance(z, set)
        list(z)
        mymap['blue'] = 7               # Shouldn't affect 'z'
        self.assertEqual(sorted(z), [('orange', 3), ('red', 5)])
Example #3
Source File: test_collections.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up 
def test_MutableMapping_subclass(self):
        # Test issue 9214
        mymap = UserDict()
        mymap['red'] = 5
        self.assertIsInstance(mymap.keys(), Set)
        self.assertIsInstance(mymap.keys(), KeysView)
        self.assertIsInstance(mymap.items(), Set)
        self.assertIsInstance(mymap.items(), ItemsView)

        mymap = UserDict()
        mymap['red'] = 5
        z = mymap.keys() | {'orange'}
        self.assertIsInstance(z, set)
        list(z)
        mymap['blue'] = 7               # Shouldn't affect 'z'
        self.assertEqual(sorted(z), ['orange', 'red'])

        mymap = UserDict()
        mymap['red'] = 5
        z = mymap.items() | {('orange', 3)}
        self.assertIsInstance(z, set)
        list(z)
        mymap['blue'] = 7               # Shouldn't affect 'z'
        self.assertEqual(sorted(z), [('orange', 3), ('red', 5)])
Example #4
Source File: test_collections.py    From android_universal with MIT License 6 votes vote down vote up 
def test_MutableMapping_subclass(self):
        # Test issue 9214
        mymap = UserDict()
        mymap['red'] = 5
        self.assertIsInstance(mymap.keys(), Set)
        self.assertIsInstance(mymap.keys(), KeysView)
        self.assertIsInstance(mymap.items(), Set)
        self.assertIsInstance(mymap.items(), ItemsView)

        mymap = UserDict()
        mymap['red'] = 5
        z = mymap.keys() | {'orange'}
        self.assertIsInstance(z, set)
        list(z)
        mymap['blue'] = 7               # Shouldn't affect 'z'
        self.assertEqual(sorted(z), ['orange', 'red'])

        mymap = UserDict()
        mymap['red'] = 5
        z = mymap.items() | {('orange', 3)}
        self.assertIsInstance(z, set)
        list(z)
        mymap['blue'] = 7               # Shouldn't affect 'z'
        self.assertEqual(sorted(z), [('orange', 3), ('red', 5)])
Example #5
Source File: _frozenbidict.py    From bidict with Mozilla Public License 2.0 5 votes vote down vote up 
def __hash__(self):  # lgtm [py/equals-hash-mismatch]
        """The hash of this bidict as determined by its items."""
        if getattr(self, '_hash', None) is None:
            # pylint: disable=protected-access,attribute-defined-outside-init
            self._hash = ItemsView(self)._hash()
        return self._hash


#                             * Code review nav *
#==============================================================================
# ← Prev: _base.py         Current: _frozenbidict.py           Next: _mut.py →
#==============================================================================
Example #6
Source File: _types.py    From bidict with Mozilla Public License 2.0 5 votes vote down vote up 
def __hash__(self):
        return ItemsView(self._mapping)._hash()  # pylint: disable=protected-access
Example #7
Source File: utils.py    From xarray-simlab with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def items(self):
        "D.items() -> a set-like object providing a view on D's items"
        return ItemsView(self)
Example #8
Source File: _mutablemapping.py    From compas with MIT License 5 votes vote down vote up 
def items(self):
        """D.items() => a set-like object providing a view on D's items"""
        return stdlib_collections.ItemsView(self)
Example #9
Source File: test_collections.py    From android_universal with MIT License 5 votes vote down vote up 
def test_issue26915(self):
        # Container membership test should check identity first
        class CustomEqualObject:
            def __eq__(self, other):
                return False
        class CustomSequence(Sequence):
            def __init__(self, seq):
                self._seq = seq
            def __getitem__(self, index):
                return self._seq[index]
            def __len__(self):
                return len(self._seq)

        nan = float('nan')
        obj = CustomEqualObject()
        seq = CustomSequence([nan, obj, nan])
        containers = [
            seq,
            ItemsView({1: nan, 2: obj}),
            ValuesView({1: nan, 2: obj})
        ]
        for container in containers:
            for elem in container:
                self.assertIn(elem, container)
        self.assertEqual(seq.index(nan), 0)
        self.assertEqual(seq.index(obj), 1)
        self.assertEqual(seq.count(nan), 2)
        self.assertEqual(seq.count(obj), 1)