mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-12-04 00:30:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Merged revisions 55007-55179 via svnmerge from

Browse source 
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

........
  r55077 | guido.van.rossum | 2007-05-02 11:54:37 -0700 (Wed, 02 May 2007) | 2 lines

  Use the new print syntax, at least.
........
  r55142 | fred.drake | 2007-05-04 21:27:30 -0700 (Fri, 04 May 2007) | 1 line

  remove old cruftiness
........
  r55143 | fred.drake | 2007-05-04 21:52:16 -0700 (Fri, 04 May 2007) | 1 line

  make this work with the new Python
........
  r55162 | neal.norwitz | 2007-05-06 22:29:18 -0700 (Sun, 06 May 2007) | 1 line

  Get asdl code gen working with Python 2.3.  Should continue to work with 3.0
........
  r55164 | neal.norwitz | 2007-05-07 00:00:38 -0700 (Mon, 07 May 2007) | 1 line

  Verify checkins to p3yk (sic) branch go to 3000 list.
........
  r55166 | neal.norwitz | 2007-05-07 00:12:35 -0700 (Mon, 07 May 2007) | 1 line

  Fix this test so it runs again by importing warnings_test properly.
........
  r55167 | neal.norwitz | 2007-05-07 01:03:22 -0700 (Mon, 07 May 2007) | 8 lines

  So long xrange.  range() now supports values that are outside
  -sys.maxint to sys.maxint.  floats raise a TypeError.

  This has been sitting for a long time.  It probably has some problems and
  needs cleanup.  Objects/rangeobject.c now uses 4-space indents since
  it is almost completely new.
........
  r55171 | guido.van.rossum | 2007-05-07 10:21:26 -0700 (Mon, 07 May 2007) | 4 lines

  Fix two tests that were previously depending on significant spaces
  at the end of a line (and before that on Python 2.x print behavior
  that has no exact equivalent in 3.0).
........
This commit is contained in:
Guido van Rossum 2007-05-07 22:24:25 +00:00
parent 598d98a7e8
commit 805365ee39
150 changed files with 1412 additions and 1320 deletions
Download patch file Download diff file Expand all files Collapse all files

38
Lib/test/test_iterlen.py
View file

@ -9,14 +9,14 @@ The desired invariant is: len(it)==len(list(it)).
A complication is that an iterable and iterator can be the same object. To
maintain the invariant, an iterator needs to dynamically update its length.
For instance, an iterable such as xrange(10) always reports its length as ten,
but it=iter(xrange(10)) starts at ten, and then goes to nine after next(it).
For instance, an iterable such as range(10) always reports its length as ten,
but it=iter(range(10)) starts at ten, and then goes to nine after next(it).
Having this capability means that map() can ignore the distinction between
map(func, iterable) and map(func, iter(iterable)).
When the iterable is immutable, the implementation can straight-forwardly
report the original length minus the cumulative number of calls to next().
This is the case for tuples, xrange objects, and itertools.repeat().
This is the case for tuples, range objects, and itertools.repeat().
Some containers become temporarily immutable during iteration. This includes
dicts, sets, and collections.deque. Their implementation is equally simple
@ -65,7 +65,7 @@ class TestInvariantWithoutMutations(unittest.TestCase):
def test_invariant(self):
it = self.it
for i in reversed(xrange(1, n+1)):
for i in reversed(range(1, n+1)):
self.assertEqual(len(it), i)
next(it)
self.assertEqual(len(it), 0)
@ -100,59 +100,59 @@ class TestRepeat(TestInvariantWithoutMutations):
class TestXrange(TestInvariantWithoutMutations):
def setUp(self):
self.it = iter(xrange(n))
self.it = iter(range(n))
class TestXrangeCustomReversed(TestInvariantWithoutMutations):
def setUp(self):
self.it = reversed(xrange(n))
self.it = reversed(range(n))
class TestTuple(TestInvariantWithoutMutations):
def setUp(self):
self.it = iter(tuple(xrange(n)))
self.it = iter(tuple(range(n)))
## ------- Types that should not be mutated during iteration -------
class TestDeque(TestTemporarilyImmutable):
def setUp(self):
d = deque(xrange(n))
d = deque(range(n))
self.it = iter(d)
self.mutate = d.pop
class TestDequeReversed(TestTemporarilyImmutable):
def setUp(self):
d = deque(xrange(n))
d = deque(range(n))
self.it = reversed(d)
self.mutate = d.pop
class TestDictKeys(TestTemporarilyImmutable):
def setUp(self):
d = dict.fromkeys(xrange(n))
d = dict.fromkeys(range(n))
self.it = iter(d)
self.mutate = d.popitem
class TestDictItems(TestTemporarilyImmutable):
def setUp(self):
d = dict.fromkeys(xrange(n))
d = dict.fromkeys(range(n))
self.it = iter(d.items())
self.mutate = d.popitem
class TestDictValues(TestTemporarilyImmutable):
def setUp(self):
d = dict.fromkeys(xrange(n))
d = dict.fromkeys(range(n))
self.it = iter(d.values())
self.mutate = d.popitem
class TestSet(TestTemporarilyImmutable):
def setUp(self):
d = set(xrange(n))
d = set(range(n))
self.it = iter(d)
self.mutate = d.pop
@ -164,7 +164,7 @@ class TestList(TestInvariantWithoutMutations):
self.it = iter(range(n))
def test_mutation(self):
d = range(n)
d = list(range(n))
it = iter(d)
next(it)
next(it)
@ -174,7 +174,7 @@ class TestList(TestInvariantWithoutMutations):
d[1:] = []
self.assertEqual(len(it), 0)
self.assertEqual(list(it), [])
d.extend(xrange(20))
d.extend(range(20))
self.assertEqual(len(it), 0)
class TestListReversed(TestInvariantWithoutMutations):
@ -183,7 +183,7 @@ class TestListReversed(TestInvariantWithoutMutations):
self.it = reversed(range(n))
def test_mutation(self):
d = range(n)
d = list(range(n))
it = reversed(d)
next(it)
next(it)
@ -193,7 +193,7 @@ class TestListReversed(TestInvariantWithoutMutations):
d[1:] = []
self.assertEqual(len(it), 0)
self.assertEqual(list(it), []) # confirm invariant
d.extend(xrange(20))
d.extend(range(20))
self.assertEqual(len(it), 0)
class TestSeqIter(TestInvariantWithoutMutations):
@ -212,7 +212,7 @@ class TestSeqIter(TestInvariantWithoutMutations):
d[1:] = []
self.assertEqual(len(it), 0)
self.assertEqual(list(it), [])
d.extend(xrange(20))
d.extend(range(20))
self.assertEqual(len(it), 0)
class TestSeqIterReversed(TestInvariantWithoutMutations):
@ -231,7 +231,7 @@ class TestSeqIterReversed(TestInvariantWithoutMutations):
d[1:] = []
self.assertEqual(len(it), 0)
self.assertEqual(list(it), []) # confirm invariant
d.extend(xrange(20))
d.extend(range(20))
self.assertEqual(len(it), 0)