本文整理汇总了Python中operator.getslice方法的典型用法代码示例。如果您正苦于以下问题：Python operator.getslice方法的具体用法？Python operator.getslice怎么用？Python operator.getslice使用的例子？那么, 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operator的用法示例。
在下文中一共展示了operator.getslice方法的6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_getslice
# 需要导入模块: import operator [as 别名]
# 或者: from operator import getslice [as 别名]
def test_getslice(self):
a = range(10)
self.assertRaises(TypeError, operator.getslice)
self.assertRaises(TypeError, operator.getslice, a, None, None)
self.assertTrue(operator.getslice(a, 4, 6) == [4, 5])
b = operator.getslice(a, 0, test_support.MAX_Py_ssize_t)
self.assertTrue(b == a) 示例2: __getslice__
# 需要导入模块: import operator [as 别名]
# 或者: from operator import getslice [as 别名]
def __getslice__(self, key):
return Expression((self, key), operator.getslice) 示例3: test_getslice
# 需要导入模块: import operator [as 别名]
# 或者: from operator import getslice [as 别名]
def test_getslice(self):
a = range(10)
self.failUnlessRaises(TypeError, operator.getslice)
self.failUnlessRaises(TypeError, operator.getslice, a, None, None)
self.failUnless(operator.getslice(a, 4, 6) == [4, 5])
b = operator.getslice(a, 0, test_support.MAX_Py_ssize_t)
self.assert_(b == a) 示例4: __getslice__
# 需要导入模块: import operator [as 别名]
# 或者: from operator import getslice [as 别名]
def __getslice__(self, *args, **kw):
from operator import getslice
return getslice(self.val, *args, **kw) 示例5: test_simple
# 需要导入模块: import operator [as 别名]
# 或者: from operator import getslice [as 别名]
def test_simple(self):
# create classes holding simple numeric types, and check
# various properties.
init = range(15, 25)
for fmt in formats:
alen = len(init)
int_array = ARRAY(fmt, alen)
ia = int_array(*init)
# length of instance ok?
self.assertEqual(len(ia), alen)
# slot values ok?
values = [ia[i] for i in range(alen)]
self.assertEqual(values, init)
# out-of-bounds accesses should be caught
with self.assertRaises(IndexError): ia[alen]
with self.assertRaises(IndexError): ia[-alen-1]
# change the items
from operator import setitem
new_values = range(42, 42+alen)
[setitem(ia, n, new_values[n]) for n in range(alen)]
values = [ia[i] for i in range(alen)]
self.assertEqual(values, new_values)
# are the items initialized to 0?
ia = int_array()
values = [ia[i] for i in range(alen)]
self.assertEqual(values, [0] * alen)
# Too many initializers should be caught
self.assertRaises(IndexError, int_array, *range(alen*2))
CharArray = ARRAY(c_char, 3)
ca = CharArray("a", "b", "c")
# Should this work? It doesn't:
# CharArray("abc")
self.assertRaises(TypeError, CharArray, "abc")
self.assertEqual(ca[0], "a")
self.assertEqual(ca[1], "b")
self.assertEqual(ca[2], "c")
self.assertEqual(ca[-3], "a")
self.assertEqual(ca[-2], "b")
self.assertEqual(ca[-1], "c")
self.assertEqual(len(ca), 3)
# slicing is now supported, but not extended slicing (3-argument)!
from operator import getslice, delitem
self.assertRaises(TypeError, getslice, ca, 0, 1, -1)
# cannot delete items
self.assertRaises(TypeError, delitem, ca, 0) 示例6: test_simple
# 需要导入模块: import operator [as 别名]
# 或者: from operator import getslice [as 别名]
def test_simple(self):
# create classes holding simple numeric types, and check
# various properties.
init = range(15, 25)
for fmt in formats:
alen = len(init)
int_array = ARRAY(fmt, alen)
ia = int_array(*init)
# length of instance ok?
self.assertEqual(len(ia), alen)
# slot values ok?
values = [ia[i] for i in range(len(init))]
self.assertEqual(values, init)
# change the items
from operator import setitem
new_values = range(42, 42+alen)
[setitem(ia, n, new_values[n]) for n in range(alen)]
values = [ia[i] for i in range(len(init))]
self.assertEqual(values, new_values)
# are the items initialized to 0?
ia = int_array()
values = [ia[i] for i in range(len(init))]
self.assertEqual(values, [0] * len(init))
# Too many initializers should be caught
self.assertRaises(IndexError, int_array, *range(alen*2))
CharArray = ARRAY(c_char, 3)
ca = CharArray("a", "b", "c")
# Should this work? It doesn't:
# CharArray("abc")
self.assertRaises(TypeError, CharArray, "abc")
self.assertEqual(ca[0], "a")
self.assertEqual(ca[1], "b")
self.assertEqual(ca[2], "c")
self.assertEqual(ca[-3], "a")
self.assertEqual(ca[-2], "b")
self.assertEqual(ca[-1], "c")
self.assertEqual(len(ca), 3)
# slicing is now supported, but not extended slicing (3-argument)!
from operator import getslice, delitem
self.assertRaises(TypeError, getslice, ca, 0, 1, -1)
# cannot delete items
self.assertRaises(TypeError, delitem, ca, 0)