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Merged revisions 60441-60474 via svnmerge from

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svn+ssh://pythondev@svn.python.org/python/trunk

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  r60441 | christian.heimes | 2008-01-30 12:46:00 +0100 (Wed, 30 Jan 2008) | 1 line

  Removed unused var
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  r60448 | christian.heimes | 2008-01-30 18:21:22 +0100 (Wed, 30 Jan 2008) | 1 line

  Fixed some references leaks in sys.
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  r60450 | christian.heimes | 2008-01-30 19:58:29 +0100 (Wed, 30 Jan 2008) | 1 line

  The previous change was causing a segfault after multiple calls to Py_Initialize() and Py_Finalize().
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  r60463 | raymond.hettinger | 2008-01-30 23:17:31 +0100 (Wed, 30 Jan 2008) | 1 line

  Update itertool recipes
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  r60464 | christian.heimes | 2008-01-30 23:54:18 +0100 (Wed, 30 Jan 2008) | 1 line

  Bug #1234: Fixed semaphore errors on AIX 5.2
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  r60469 | raymond.hettinger | 2008-01-31 02:38:15 +0100 (Thu, 31 Jan 2008) | 6 lines

  Fix defect in __ixor__ which would get the wrong
  answer if the input iterable had a duplicate element
  (two calls to toggle() reverse each other).  Borrow
  the correct code from sets.py.
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  r60470 | raymond.hettinger | 2008-01-31 02:42:11 +0100 (Thu, 31 Jan 2008) | 1 line

  Missing return
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  r60471 | jeffrey.yasskin | 2008-01-31 08:44:11 +0100 (Thu, 31 Jan 2008) | 4 lines

  Added more documentation on how mixed-mode arithmetic should be implemented. I
  also noticed and fixed a bug in Rational's forward operators (they were
  claiming all instances of numbers.Rational instead of just the concrete types).
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This commit is contained in:
Christian Heimes 2008-01-31 14:31:45 +00:00
parent 4b8db419c2
commit 7b3ce6a17e
11 changed files with 275 additions and 60 deletions
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18
Lib/_abcoll.py
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@ -300,16 +300,6 @@ class MutableSet(Set):
self.discard(value)
return value
def toggle(self, value):
"""Return True if it was added, False if deleted."""
# XXX This implementation is not thread-safe
if value in self:
self.discard(value)
return False
else:
self.add(value)
return True
def clear(self):
"""This is slow (creates N new iterators!) but effective."""
try:
@ -330,9 +320,13 @@ class MutableSet(Set):
return self
def __ixor__(self, it: Iterable):
# This calls toggle(), so if that is overridded, we call the override
if not isinstance(it, Set):
it = self._from_iterable(it)
for value in it:
self.toggle(it)
if value in self:
self.discard(value)
else:
self.add(value)
return self
def __isub__(self, it: Iterable):