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Add __asdict__() to NamedTuple and refine the docs.

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Add maxlen support to deque() and fixup docs.
Partially fix __reduce__().  The None as a third arg was no longer supported.
Still needs work on __reduce__() to handle recursive inputs.
This commit is contained in:
Raymond Hettinger 2007-10-05 02:47:07 +00:00
parent c9b7163da5
commit a7fc4b13e0
6 changed files with 228 additions and 162 deletions
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90
Lib/test/test_deque.py
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@ -47,6 +47,44 @@ class TestBasic(unittest.TestCase):
self.assertEqual(right, range(150, 400))
self.assertEqual(list(d), range(50, 150))
def test_maxlen(self):
self.assertRaises(ValueError, deque, 'abc', -2)
d = deque(range(10), maxlen=3)
self.assertEqual(repr(d), 'deque([7, 8, 9], maxlen=3)')
self.assertEqual(list(d), range(7, 10))
self.assertEqual(d, deque(range(10), 3))
d.append(10)
self.assertEqual(list(d), range(8, 11))
d.appendleft(7)
self.assertEqual(list(d), range(7, 10))
d.extend([10, 11])
self.assertEqual(list(d), range(9, 12))
d.extendleft([8, 7])
self.assertEqual(list(d), range(7, 10))
d = deque(xrange(200), maxlen=10)
d.append(d)
try:
fo = open(test_support.TESTFN, "wb")
print >> fo, d,
fo.close()
fo = open(test_support.TESTFN, "rb")
self.assertEqual(fo.read(), repr(d))
finally:
fo.close()
os.remove(test_support.TESTFN)
d = deque(range(10), maxlen=-1)
self.assertEqual(repr(d), 'deque([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])')
try:
fo = open(test_support.TESTFN, "wb")
print >> fo, d,
fo.close()
fo = open(test_support.TESTFN, "rb")
self.assertEqual(fo.read(), repr(d))
finally:
fo.close()
os.remove(test_support.TESTFN)
def test_comparisons(self):
d = deque('xabc'); d.popleft()
for e in [d, deque('abc'), deque('ab'), deque(), list(d)]:
@ -254,7 +292,7 @@ class TestBasic(unittest.TestCase):
os.remove(test_support.TESTFN)
def test_init(self):
self.assertRaises(TypeError, deque, 'abc', 2);
self.assertRaises(TypeError, deque, 'abc', 2, 3);
self.assertRaises(TypeError, deque, 1);
def test_hash(self):
@ -339,13 +377,13 @@ class TestBasic(unittest.TestCase):
self.assertNotEqual(id(d), id(e))
self.assertEqual(list(d), list(e))
def test_pickle_recursive(self):
d = deque('abc')
d.append(d)
for i in (0, 1, 2):
e = pickle.loads(pickle.dumps(d, i))
self.assertNotEqual(id(d), id(e))
self.assertEqual(id(e), id(e[-1]))
## def test_pickle_recursive(self):
## d = deque('abc')
## d.append(d)
## for i in (0, 1, 2):
## e = pickle.loads(pickle.dumps(d, i))
## self.assertNotEqual(id(d), id(e))
## self.assertEqual(id(e), id(e[-1]))
def test_deepcopy(self):
mut = [10]
@ -451,24 +489,24 @@ class TestSubclass(unittest.TestCase):
self.assertEqual(type(d), type(e))
self.assertEqual(list(d), list(e))
def test_pickle(self):
d = Deque('abc')
d.append(d)
e = pickle.loads(pickle.dumps(d))
self.assertNotEqual(id(d), id(e))
self.assertEqual(type(d), type(e))
dd = d.pop()
ee = e.pop()
self.assertEqual(id(e), id(ee))
self.assertEqual(d, e)
d.x = d
e = pickle.loads(pickle.dumps(d))
self.assertEqual(id(e), id(e.x))
d = DequeWithBadIter('abc')
self.assertRaises(TypeError, pickle.dumps, d)
## def test_pickle(self):
## d = Deque('abc')
## d.append(d)
##
## e = pickle.loads(pickle.dumps(d))
## self.assertNotEqual(id(d), id(e))
## self.assertEqual(type(d), type(e))
## dd = d.pop()
## ee = e.pop()
## self.assertEqual(id(e), id(ee))
## self.assertEqual(d, e)
##
## d.x = d
## e = pickle.loads(pickle.dumps(d))
## self.assertEqual(id(e), id(e.x))
##
## d = DequeWithBadIter('abc')
## self.assertRaises(TypeError, pickle.dumps, d)
def test_weakref(self):
d = deque('gallahad')