本文整理汇总了Python中xray.Dataset.attributes['bar']方法的典型用法代码示例。如果您正苦于以下问题：Python Dataset.attributes['bar']方法的具体用法？Python Dataset.attributes['bar']怎么用？Python Dataset.attributes['bar']使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类xray.Dataset的用法示例。
在下文中一共展示了Dataset.attributes['bar']方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_attributes
# 需要导入模块: from xray import Dataset [as 别名]
# 或者: from xray.Dataset import attributes['bar'] [as 别名]
def test_attributes(self):
a = Dataset()
a.attributes['foo'] = 'abc'
a.attributes['bar'] = 1
# numeric scalars are stored as length-1 vectors
self.assertTrue(isinstance(a.attributes['bar'], np.ndarray) and
a.attributes['bar'].ndim == 1)
# __contains__ method
self.assertTrue('foo' in a.attributes)
self.assertTrue('bar' in a.attributes)
self.assertTrue('baz' not in a.attributes)
# user-defined attributes are not object attributes
self.assertRaises(AttributeError, object.__getattribute__, a, 'foo')
# different ways of setting attributes ought to be equivalent
b = Dataset()
b.attributes.update(foo='abc')
self.assertEquals(a.attributes['foo'], b.attributes['foo'])
b = Dataset()
b.attributes.update([('foo', 'abc')])
self.assertEquals(a.attributes['foo'], b.attributes['foo'])
b = Dataset()
b.attributes.update({'foo': 'abc'})
self.assertEquals(a.attributes['foo'], b.attributes['foo'])
# attributes can be overwritten
b.attributes['foo'] = 'xyz'
self.assertEquals(b.attributes['foo'], 'xyz')
# attributes can be deleted
del b.attributes['foo']
self.assertTrue('foo' not in b.attributes)
# attributes can be cleared
b.attributes.clear()
self.assertTrue(len(b.attributes) == 0)
# attributes can be compared
a = Dataset()
b = Dataset()
a.attributes['foo'] = 'bar'
b.attributes['foo'] = np.nan
self.assertFalse(a == b)
a.attributes['foo'] = np.nan
self.assertTrue(a == b)
# attribute names/values must be netCDF-compatible
self.assertRaises(ValueError, b.attributes.__setitem__, '/', 0)
self.assertRaises(ValueError, b.attributes.__setitem__, 'foo', np.zeros((2, 2)))
self.assertRaises(ValueError, b.attributes.__setitem__, 'foo', dict())