Python operator.is_方法代码示例

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def _validate_query_state(self):
        for attr, methname, notset, op in (
            ('_limit', 'limit()', None, operator.is_),
            ('_offset', 'offset()', None, operator.is_),
            ('_order_by', 'order_by()', False, operator.is_),
            ('_group_by', 'group_by()', False, operator.is_),
            ('_distinct', 'distinct()', False, operator.is_),
            (
                '_from_obj',
                'join(), outerjoin(), select_from(), or from_self()',
                (), operator.eq)
        ):
            if not op(getattr(self.query, attr), notset):
                raise sa_exc.InvalidRequestError(
                    "Can't call Query.update() or Query.delete() "
                    "when %s has been called" %
                    (methname, )
                ) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def test_operator(self):
        import operator
        self.assertIs(operator.truth(0), False)
        self.assertIs(operator.truth(1), True)
        with test_support.check_py3k_warnings():
            self.assertIs(operator.isCallable(0), False)
            self.assertIs(operator.isCallable(len), True)
        self.assertIs(operator.isNumberType(None), False)
        self.assertIs(operator.isNumberType(0), True)
        self.assertIs(operator.not_(1), False)
        self.assertIs(operator.not_(0), True)
        self.assertIs(operator.isSequenceType(0), False)
        self.assertIs(operator.isSequenceType([]), True)
        self.assertIs(operator.contains([], 1), False)
        self.assertIs(operator.contains([1], 1), True)
        self.assertIs(operator.isMappingType(1), False)
        self.assertIs(operator.isMappingType({}), True)
        self.assertIs(operator.lt(0, 0), False)
        self.assertIs(operator.lt(0, 1), True)
        self.assertIs(operator.is_(True, True), True)
        self.assertIs(operator.is_(True, False), False)
        self.assertIs(operator.is_not(True, True), False)
        self.assertIs(operator.is_not(True, False), True) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def add_globals(self):
    "Add some Scheme standard procedures."
    import math, cmath, operator as op
    from functools import reduce
    self.update(vars(math))
    self.update(vars(cmath))
    self.update({
     '+':op.add, '-':op.sub, '*':op.mul, '/':op.itruediv, 'níl':op.not_, 'agus':op.and_,
     '>':op.gt, '<':op.lt, '>=':op.ge, '<=':op.le, '=':op.eq, 'mod':op.mod, 
     'frmh':cmath.sqrt, 'dearbhluach':abs, 'uas':max, 'íos':min,
     'cothrom_le?':op.eq, 'ionann?':op.is_, 'fad':len, 'cons':cons,
     'ceann':lambda x:x[0], 'tóin':lambda x:x[1:], 'iarcheangail':op.add,  
     'liosta':lambda *x:list(x), 'liosta?': lambda x:isa(x,list),
     'folamh?':lambda x: x == [], 'adamh?':lambda x: not((isa(x, list)) or (x == None)),
     'boole?':lambda x: isa(x, bool), 'scag':lambda f, x: list(filter(f, x)),
     'cuir_le':lambda proc,l: proc(*l), 'mapáil':lambda p, x: list(map(p, x)), 
     'lódáil':lambda fn: load(fn), 'léigh':lambda f: f.read(),
     'oscail_comhad_ionchuir':open,'dún_comhad_ionchuir':lambda p: p.file.close(), 
     'oscail_comhad_aschur':lambda f:open(f,'w'), 'dún_comhad_aschur':lambda p: p.close(),
     'dac?':lambda x:x is eof_object, 'luacháil':lambda x: evaluate(x),
     'scríobh':lambda x,port=sys.stdout:port.write(to_string(x) + '\n')})
    return self 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def get_all_payloads_with_value(self, value, equal_fn=None):
    """Returns all the payloads whose `value` attribute is equal to `value`.

    Args:
      value: The value to test.
      equal_fn: The optional function to use to determine equality, if `None` is
        specified `operator.is_` is used.
    """
    payloads = []
    if equal_fn is None:
      equal_fn = operator.is_
    comp = typing.cast(SequentialBindingNode, self.active_node)
    while comp.parent is not None or comp.older_sibling is not None:
      if comp.payload.value is not None and equal_fn(value, comp.payload.value):
        payloads.append(comp.payload)
      if comp.older_sibling is not None:
        comp = comp.older_sibling
      elif comp.parent is not None:
        comp = comp.parent
    return payloads 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def is_(info, a, b):
    """Implement the is operator."""
    anode, bnode = info.nodes()
    at = (await a.get()).xtype()
    bt = (await b.get()).xtype()
    if at is Nil or bt is Nil:
        return Constant(at is bt)
    elif at is NotImplementedType or bt is NotImplementedType:
        return Constant(at is bt)
    elif at is Bool and bt is Bool:
        return info.graph.apply(P.bool_eq, anode, bnode)
    elif at is Bool or bt is Bool:
        return Constant(False)
    else:
        raise MyiaTypeError(
            f'The operator "is" is only implemented for booleans '
            + f"and singletons such as None or NotImplemented."
        ) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def test_operator(self):
        import operator
        self.assertIs(operator.truth(0), False)
        self.assertIs(operator.truth(1), True)
        self.assertIs(operator.isCallable(0), False)
        self.assertIs(operator.isCallable(len), True)
        self.assertIs(operator.isNumberType(None), False)
        self.assertIs(operator.isNumberType(0), True)
        self.assertIs(operator.not_(1), False)
        self.assertIs(operator.not_(0), True)
        self.assertIs(operator.isSequenceType(0), False)
        self.assertIs(operator.isSequenceType([]), True)
        self.assertIs(operator.contains([], 1), False)
        self.assertIs(operator.contains([1], 1), True)
        self.assertIs(operator.isMappingType(1), False)
        self.assertIs(operator.isMappingType({}), True)
        self.assertIs(operator.lt(0, 0), False)
        self.assertIs(operator.lt(0, 1), True)
        self.assertIs(operator.is_(True, True), True)
        self.assertIs(operator.is_(True, False), False)
        self.assertIs(operator.is_not(True, True), False)
        self.assertIs(operator.is_not(True, False), True) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def __init__(self, tokens):
        super().__init__(tokens)
        self.operator_map = {
            "<": operator.lt,
            "<=": operator.le,
            ">": operator.gt,
            ">=": operator.ge,
            "==": operator.eq,
            "!=": operator.ne,
            "in": EvalLogic.in_,
            "not in": EvalLogic.not_in,
            "is": operator.is_,
            "is not": operator.is_not,
            "isdisjoint": lambda a, b: a.isdisjoint(b),
            "and": operator.and_,
            "or": operator.or_,
        } 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def _validate_query_state(self):
        for attr, methname, notset, op in (
            ("_limit_clause", "limit()", None, operator.is_),
            ("_offset_clause", "offset()", None, operator.is_),
            ("_order_by_clauses", "order_by()", (), operator.eq),
            ("_group_by_clauses", "group_by()", (), operator.eq),
            ("_distinct", "distinct()", False, operator.is_),
            (
                "_from_obj",
                "join(), outerjoin(), select_from(), or from_self()",
                (),
                operator.eq,
            ),
            (
                "_legacy_setup_joins",
                "join(), outerjoin(), select_from(), or from_self()",
                (),
                operator.eq,
            ),
        ):
            if not op(getattr(self.query, attr), notset):
                raise sa_exc.InvalidRequestError(
                    "Can't call Query.update() or Query.delete() "
                    "when %s has been called" % (methname,)
                ) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def na_cmp():
    """Binary operator for comparing NA values.

    Should return a function of two arguments that returns
    True if both arguments are (scalar) NA for your type.

    By default, uses ``operator.is_``
    """
    return operator.is_ 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def test_is(self):
        a = b = 'xyzpdq'
        c = a[:3] + b[3:]
        self.assertRaises(TypeError, operator.is_)
        self.assertTrue(operator.is_(a, b))
        self.assertFalse(operator.is_(a,c)) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def test_operator(self):
        import operator
        self.assertIs(operator.truth(0), False)
        self.assertIs(operator.truth(1), True)
        self.assertIs(operator.not_(1), False)
        self.assertIs(operator.not_(0), True)
        self.assertIs(operator.contains([], 1), False)
        self.assertIs(operator.contains([1], 1), True)
        self.assertIs(operator.lt(0, 0), False)
        self.assertIs(operator.lt(0, 1), True)
        self.assertIs(operator.is_(True, True), True)
        self.assertIs(operator.is_(True, False), False)
        self.assertIs(operator.is_not(True, True), False)
        self.assertIs(operator.is_not(True, False), True) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def standard_env():
    env = Env()
    env.update(vars(math))
    env.update({
        '+':op.add, 
        '-':op.sub, 
        '*':op.mul, 
        '/':op.div, 
        '>':op.gt,
        '<':op.lt,
        '>=':op.ge,
        '<=':op.le,
        '=':op.eq,
        'abs': abs,
        'append': op.add,
        'apply': apply,
        'begin': lambda *x: x[-1],
        'car': lambda x: x[0],
        'cdr': lambda x: x[1:],
        'cons': lambda x,y: [x] + y,
        'eq?':     op.is_, 
        'equal?':  op.eq, 
        'length':  len, 
        'list':    lambda *x: list(x),
        'list?':   lambda x: isinstance(x,list), 
        'map':     map,
        'max':     max,
        'filter':   filter,
        'foldr':    foldr,
        'foldl':    foldl,
        'min':     min,
        'not':     op.not_,
        'null?':   lambda x: x == [], 
        'number?': lambda x: isinstance(x, Number),   
        'procedure?': callable,
        'round':   round,
        'symbol?': lambda x: isinstance(x, Symbol),
        })
    return env 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import is_ [as 别名]
def test_accumulate_reducible_none(self):
        # Issue #25718: total is None
        it = accumulate([None, None, None], operator.is_)
        self.assertEqual(next(it), None)
        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
            it_copy = pickle.loads(pickle.dumps(it, proto))
            self.assertEqual(list(it_copy), [True, False])
        self.assertEqual(list(copy.deepcopy(it)), [True, False])
        self.assertEqual(list(copy.copy(it)), [True, False])