Python cPickle.loads函数代码示例

 def test_pickling(self):
     """intbitset - pickling"""
     from six.moves import cPickle
     for set1 in self.sets + [[]]:
         self.assertEqual(self.intbitset(set1), cPickle.loads(cPickle.dumps(self.intbitset(set1), -1)))
     for set1 in self.sets + [[]]:
         self.assertEqual(self.intbitset(set1, trailing_bits=True), cPickle.loads(cPickle.dumps(self.intbitset(set1, trailing_bits=True), -1)))

def test_none_Constant():
    """ Tests equals

    We had an error in the past with unpickling
    """
    o1 = Constant(NoneTypeT(), None, name='NoneConst')
    o2 = Constant(NoneTypeT(), None, name='NoneConst')
    assert o1.equals(o2)
    assert NoneConst.equals(o1)
    assert o1.equals(NoneConst)
    assert NoneConst.equals(o2)
    assert o2.equals(NoneConst)

    # This trigger equals that returned the wrong answer in the past.
    import six.moves.cPickle as pickle
    import theano
    from theano import tensor

    x = tensor.vector('x')
    y = tensor.argmax(x)
    kwargs = {}
    # We can't pickle DebugMode
    if theano.config.mode in ["DebugMode", "DEBUG_MODE"]:
        kwargs = {'mode': 'FAST_RUN'}
    f = theano.function([x], [y], **kwargs)
    pickle.loads(pickle.dumps(f))

def test_polar():
    ax = plt.subplot(111, polar=True)
    fig = plt.gcf()
    result = BytesIO()
    pf = pickle.dumps(fig)
    pickle.loads(pf)
    plt.draw()

def test_rrulewrapper():
    r = rrulewrapper(2)
    try:
        pickle.loads(pickle.dumps(r))
    except RecursionError:
        print('rrulewrapper pickling test failed')
        raise

def test_store_update_context():
    src.val.nested = 'nested{{src.ccdid}}'
    src.val['ccdid'] = 2
    src['srcdir'] = 'obs{{ src.obsid }}/{{src.nested}}'
    files['srcdir'] = '{{ src.srcdir }}'
    src['obsid'] = 123
    src.val['ccdid'] = 2
    src['ra'] = 1.4343256789
    src['ra'].format = '%.4f'
    files['evt2'] = 'obs{{ src.obsid }}/{{src.nested}}/acis_evt2'
    src.val.nested = 'nested{{src.ccdid}}'

    tmp = pickle.dumps(src)
    tmp2 = pickle.dumps(files)

    src.clear()
    files.clear()

    assert src['ra'].val is None
    assert files['evt2'].val is None

    src.update(pickle.loads(tmp))
    files.update(pickle.loads(tmp2))

    assert str(src['ra']) == '1.4343'
    assert str(src['srcdir']) == 'obs123/nested2'
    assert files['srcdir'].rel == 'data/obs123/nested2'
    assert files.rel.srcdir == 'data/obs123/nested2'
    assert str(files['evt2.fits']) == 'data/obs123/nested2/acis_evt2.fits'

def test_run_in_runclassmethod():
    class C(object):
        @classmethod
        def fn(cls, *args, **kwargs):
            return cls, args, kwargs
    C.__name__ = 'C_' + str(uuid4()).replace('-', '_')
    C.__module__ = 'pytest_shutil.run'
    with patch('pytest_shutil.run.execnet') as execnet:
        gw = execnet.makegateway.return_value
        chan = gw.remote_exec.return_value
        chan.receive.return_value = cPickle.dumps(sentinel.ret)
        c = C()
        with patch.object(run, C.__name__, C, create=True):
            run.run_in_subprocess(c.fn, python='sentinel.python')(ARG, kw=KW)
            ((s,), _) = chan.send.call_args
            if sys.version_info < (3, 0, 0):
                # Class methods are not pickleable in Python 2.
                assert cPickle.loads(s) == (run._invoke_method, (C, 'fn', ARG), {'kw': KW})
            else:
                # Class methods are pickleable in Python 3.
                assert cPickle.loads(s) == (c.fn, (ARG,), {'kw': KW})
            ((remote_fn,), _) = gw.remote_exec.call_args
            ((chan.receive.return_value,), _) = chan.send.call_args
            remote_fn(chan)
            chan.send.assert_called_with(cPickle.dumps((C, (ARG,), {'kw': KW}), protocol=0))

    def test_pickle(self):
        a = T.scalar()  # the a is for 'anonymous' (un-named).
        x, s = T.scalars('xs')

        f = function([x, In(a, value=1.0, name='a'), In(s, value=0.0, update=s+a*x, mutable=True)], s+a*x)

        try:
            # Note that here we also test protocol 0 on purpose, since it
            # should work (even though one should not use it).
            g = pickle.loads(pickle.dumps(f, protocol=0))
            g = pickle.loads(pickle.dumps(f, protocol=-1))
        except NotImplementedError as e:
            if e[0].startswith('DebugMode is not picklable'):
                return
            else:
                raise
        # if they both return, assume  that they return equivalent things.
        # print [(k,id(k)) for k in f.finder.keys()]
        # print [(k,id(k)) for k in g.finder.keys()]

        self.assertFalse(g.container[0].storage is f.container[0].storage)
        self.assertFalse(g.container[1].storage is f.container[1].storage)
        self.assertFalse(g.container[2].storage is f.container[2].storage)
        self.assertFalse(x in g.container)
        self.assertFalse(x in g.value)

        self.assertFalse(g.value[1] is f.value[1])  # should not have been copied
        self.assertFalse(g.value[2] is f.value[2])  # should have been copied because it is mutable.
        self.assertFalse((g.value[2] != f.value[2]).any())  # its contents should be identical

        self.assertTrue(f(2, 1) == g(2))  # they should be in sync, default value should be copied.
        self.assertTrue(f(2, 1) == g(2))  # they should be in sync, default value should be copied.
        f(1, 2)  # put them out of sync
        self.assertFalse(f(1, 2) == g(1, 2))  # they should not be equal anymore.

 def test_unpickle_wrongname(self, universe_n, pickle_str_n):
     # we change the universe's anchor_name
     universe_n.anchor_name = "test2"
     # shouldn't unpickle if no name matches, even if there's a compatible
     # universe in the unnamed anchor list.
     with pytest.raises(RuntimeError):
         cPickle.loads(pickle_str_n)

    def _load_flann_model(self):
        if not self._descr_cache and not self._descr_cache_elem.is_empty():
            # Load descriptor cache
            # - is copied on fork, so only need to load here.
            self._log.debug("Loading cached descriptors")
            self._descr_cache = \
                cPickle.loads(self._descr_cache_elem.get_bytes())

        # Params pickle include the build params + our local state params
        if self._index_param_elem and not self._index_param_elem.is_empty():
            state = cPickle.loads(self._index_param_elem.get_bytes())
            self._build_autotune = state['b_autotune']
            self._build_target_precision = state['b_target_precision']
            self._build_sample_frac = state['b_sample_frac']
            self._distance_method = state['distance_method']
            self._flann_build_params = state['flann_build_params']

        # Load the binary index
        if self._index_elem and not self._index_elem.is_empty():
            # make numpy matrix of descriptor vectors for FLANN
            pts_array = [d.vector() for d in self._descr_cache]
            pts_array = numpy.array(pts_array, dtype=pts_array[0].dtype)
            pyflann.set_distance_type(self._distance_method)
            self._flann = pyflann.FLANN()
            tmp_fp = self._index_elem.write_temp()
            self._flann.load_index(tmp_fp, pts_array)
            self._index_elem.clean_temp()
            del pts_array, tmp_fp

        # Set current PID to the current
        self._pid = multiprocessing.current_process().pid

    def test_added_descriptor_table_caching(self):
        cache_elem = DataMemoryElement(readonly=False)
        descrs = [random_descriptor() for _ in range(3)]
        expected_table = dict((r.uuid(), r) for r in descrs)

        i = MemoryDescriptorIndex(cache_elem)
        self.assertTrue(cache_elem.is_empty())

        # Should add descriptors to table, caching to writable element.
        i.add_many_descriptors(descrs)
        self.assertFalse(cache_elem.is_empty())
        self.assertEqual(pickle.loads(i.cache_element.get_bytes()),
                         expected_table)

        # Changing the internal table (remove, add) it should reflect in
        # cache
        new_d = random_descriptor()
        expected_table[new_d.uuid()] = new_d
        i.add_descriptor(new_d)
        self.assertEqual(pickle.loads(i.cache_element.get_bytes()),
                         expected_table)

        rm_d = list(expected_table.values())[0]
        del expected_table[rm_d.uuid()]
        i.remove_descriptor(rm_d.uuid())
        self.assertEqual(pickle.loads(i.cache_element.get_bytes()),
                         expected_table)

 def set_user_definitions(self, definitions):
     if definitions:
         if six.PY2:
             self.user = pickle.loads(base64.decodestring(definitions.encode('ascii')))
         else:
             self.user = pickle.loads(base64.decodebytes(definitions.encode('ascii')))
     else:
         self.user = {}

 def test_unpickle_noanchor(self, universe, pickle_str):
     # Shouldn't unpickle if the universe is removed from the anchors
     universe.remove_anchor()
     # In the complex (parallel) testing environment there's the risk of
     # other compatible Universes being available for anchoring even after
     # this one is expressly removed.
     # assert_raises(RuntimeError, cPickle.loads, pickle_str)
     with pytest.raises(RuntimeError):
         cPickle.loads(pickle_str)

    def test_serialization(self):
        e = smqtk.representation.classification_element.memory\
            .MemoryClassificationElement('test', 0)

        e2 = cPickle.loads(cPickle.dumps(e))
        self.assertEqual(e, e2)

        e.set_classification(a=0, b=1)
        e2 = cPickle.loads(cPickle.dumps(e))
        self.assertEqual(e, e2)

def assert_pickle_idempotent(obj):
    '''Assert that obj does not change (w.r.t. ==) under repeated picklings
    '''
    from six.moves.cPickle import dumps, loads
    obj1 = loads(dumps(obj))
    obj2 = loads(dumps(obj1))
    obj3 = loads(dumps(obj2))
    assert_equivalent(obj, obj1)
    assert_equivalent(obj, obj2)
    assert_equivalent(obj, obj3)
    assert type(obj) is type(obj3)

 def get(self, id):
     envelope_raw, attempts, delivered_indexes_raw = \
         self.redis.hmget(self._get_key(id), 'envelope', 'attempts',
                          'delivered_indexes')
     if not envelope_raw:
         raise KeyError(id)
     envelope = cPickle.loads(envelope_raw)
     del envelope_raw
     if delivered_indexes_raw:
         delivered_indexes = cPickle.loads(delivered_indexes_raw)
         self._remove_delivered_rcpts(envelope, delivered_indexes)
     return envelope, int(attempts or 0)