Python operator.abs方法代码示例

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def argmax(iterable, key=None, both=False):
    """
    >>> argmax([4,2,-5])
    0
    >>> argmax([4,2,-5], key=abs)
    2
    >>> argmax([4,2,-5], key=abs, both=True)
    (2, 5)
    """
    if key is not None:
        it = imap(key, iterable)
    else:
        it = iter(iterable)
    score, argmax = reduce(max, izip(it, count()))
    if both:
        return argmax, score
    return argmax 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def compose(*funcs):
    """Compose `funcs` to a single function.

    >>> compose(operator.abs, operator.add)(-2,-3)
    5
    >>> compose()('nada')
    'nada'
    >>> compose(sorted, set, partial(filter, None))(range(3)[::-1]*2)
    [1, 2]
    """
    # slightly optimized for most common cases and hence verbose
    if len(funcs) == 2: f0,f1=funcs; return lambda *a,**kw: f0(f1(*a,**kw))
    elif len(funcs) == 3: f0,f1,f2=funcs; return lambda *a,**kw: f0(f1(f2(*a,**kw)))
    elif len(funcs) == 0: return lambda x:x     # XXX single kwarg
    elif len(funcs) == 1: return funcs[0]
    else:
        def composed(*args,**kwargs):
            y = funcs[-1](*args,**kwargs)
            for f in funcs[:0:-1]: y = f(y)
            return y
        return composed 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def assignment(self):
        varLst = []
        while self.isAssignment():
            varLst .append(self.match().value)
            self.match(ASSIGN)
        self.sentenceValue()
        sym0 = self.getSymbol(varLst[0])
        lastLevel=abs(self.level-sym0.level)
        lastAddr = sym0.addr
        self.genIns('STO',lastLevel,sym0.addr)
        for var in varLst[1:]:
            sym = self.getSymbol(var)
            if sym.type=='CONST':
                raise Exception('[Error]: Const "{}" can\'t be reassigned'.format(sym.name))
            self.genIns('LOD',lastLevel,lastAddr)
            lastLevel = abs(self.level-sym.level)
            lastAddr = sym.addr
            self.genIns('STO',lastLevel,sym.addr) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def testAbs(self):
        self.unaryCheck(operator.abs) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def checkBounds(self, i, j, op):
        a = intbv(i)
        assert a == i  # just to be sure
        try:
            exec("a %s int(j)" % op)
        except (ZeroDivisionError, ValueError):
            return  # prune
        if not isinstance(a._val, int):
            return  # prune
        if abs(a) > maxint * maxint:
            return  # keep it reasonable
        if a > i:
            b = intbv(i, min=i, max=a+1)
            for m in (i+1, a):
                b = intbv(i, min=i, max=m)
                with pytest.raises(ValueError):
                    exec("b %s int(j)" % op)
        elif a < i :
            b = intbv(i, min=a, max=i+1)
            exec("b %s int(j)" % op)  # should be ok
            for m in (a+1, i):
                b = intbv(i, min=m, max=i+1)
                with pytest.raises(ValueError):
                    exec("b %s int(j)" % op)
        else:  # a == i
            b = intbv(i, min=i, max=i+1)
            exec("b %s int(j)" % op)  # should be ok 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def foo2():
    return map(o.abs, [1, 2, 3]) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def __abs__(self):
    return NonStandardInteger(operator.abs(self.val)) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def test_abs(self):
        self.assertRaises(TypeError, operator.abs)
        self.assertRaises(TypeError, operator.abs, None)
        self.assertTrue(operator.abs(-1) == 1)
        self.assertTrue(operator.abs(1) == 1) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def setUp(self):
    super(CoreUnaryOpsTest, self).setUp()

    self.ops = [
        ('abs', operator.abs, math_ops.abs, core.abs_function),
        ('neg', operator.neg, math_ops.negative, core.neg),
        # TODO(shoyer): add unary + to core TensorFlow
        ('pos', None, None, None),
        ('sign', None, math_ops.sign, core.sign),
        ('reciprocal', None, math_ops.reciprocal, core.reciprocal),
        ('square', None, math_ops.square, core.square),
        ('round', None, math_ops.round, core.round_function),
        ('sqrt', None, math_ops.sqrt, core.sqrt),
        ('rsqrt', None, math_ops.rsqrt, core.rsqrt),
        ('log', None, math_ops.log, core.log),
        ('exp', None, math_ops.exp, core.exp),
        ('log', None, math_ops.log, core.log),
        ('ceil', None, math_ops.ceil, core.ceil),
        ('floor', None, math_ops.floor, core.floor),
        ('cos', None, math_ops.cos, core.cos),
        ('sin', None, math_ops.sin, core.sin),
        ('tan', None, math_ops.tan, core.tan),
        ('acos', None, math_ops.acos, core.acos),
        ('asin', None, math_ops.asin, core.asin),
        ('atan', None, math_ops.atan, core.atan),
        ('lgamma', None, math_ops.lgamma, core.lgamma),
        ('digamma', None, math_ops.digamma, core.digamma),
        ('erf', None, math_ops.erf, core.erf),
        ('erfc', None, math_ops.erfc, core.erfc),
        ('lgamma', None, math_ops.lgamma, core.lgamma),
    ]
    total_size = np.prod([v.size for v in self.original_lt.axes.values()])
    self.test_lt = core.LabeledTensor(
        math_ops.cast(self.original_lt, dtypes.float32) / total_size,
        self.original_lt.axes) 

# 需要导入模块: import operator [as 别名]
# 或者: from operator import abs [as 别名]
def __abs__(self):
        return self._uop(operator.abs)