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93 Commits

Author SHA1 Message Date
Raymond Hettinger d081abc8be Promote combinations_with_replacement() from a recipe to a regular itertool. 2009-01-27 02:58:49 +00:00
Raymond Hettinger 2bcb8e9b0d Promote compress() from a recipe to being a regular itertool. 2009-01-25 21:04:14 +00:00
Amaury Forgeot d'Arc a40d573664 #3720: Interpreter crashes when an evil iterator removes its own next function. 
Now the slot is filled with a function that always raises.

Will not backport: extensions compiled with 2.6.x would not run on 2.6.0.
 2009-01-12 23:36:55 +00:00
Raymond Hettinger 5b913e31a1 Forward port r68394 for issue 4816. 2009-01-08 06:39:04 +00:00
Georg Brandl 8550d69a84 #2536: fix itertools.permutations and itertools.combinations docstrings. 2008-06-10 12:46:39 +00:00
Gregory P. Smith dd96db63f6 This reverts r63675 based on the discussion in this thread: 
http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
 2008-06-09 04:58:54 +00:00
Christian Heimes 593daf545b Renamed PyString to PyBytes 2008-05-26 12:51:38 +00:00
Raymond Hettinger 0ccfe5f2a0 Remove itertools warnings I had added before the 2-to-3 handled the migration. 2008-03-19 18:01:58 +00:00
Raymond Hettinger 10dca6e282 The filter() function does support a None argument in Py3.0. 2008-03-19 17:58:59 +00:00
David Wolever 2724ab99c8 Added zip, map, filter to future_bultins (#2171) 2008-03-19 02:35:45 +00:00
Raymond Hettinger 431f029486 Consistent tense. 2008-03-13 16:43:59 +00:00
Raymond Hettinger 10f40a6b5a Add 2-to-3 support for the itertools moved to builtins or renamed. 2008-03-13 16:43:17 +00:00
Raymond Hettinger a1ca94a102 Issue 2246: itertools grouper object did not participate in GC (should be backported). 2008-03-06 22:51:36 +00:00
Raymond Hettinger 6e3e415886 Small code cleanup. 2008-03-05 21:04:32 +00:00
Raymond Hettinger 66f91ea966 C implementation of itertools.permutations(). 2008-03-05 20:59:58 +00:00
Raymond Hettinger f1cca2b593 Fix refleak in chain(). 2008-03-04 22:29:44 +00:00
Raymond Hettinger d553d856e7 Beef-up docs and tests for itertools. Fix-up end-case for product(). 2008-03-04 04:17:08 +00:00
Raymond Hettinger e3fabd10cb Handle 0-tuples which can be singletons. 2008-03-02 12:02:19 +00:00
Raymond Hettinger 61024b9181 Simplify code for itertools.product(). 2008-03-02 11:57:16 +00:00
Raymond Hettinger 08ff6822cc Handle the repeat keyword argument for itertools.product(). 2008-02-29 02:21:48 +00:00
Raymond Hettinger b4cbc98c39 Add alternate constructor for itertools.chain(). 2008-02-28 22:46:41 +00:00
Raymond Hettinger 05bf6338b8 Have itertools.chain() consume its inputs lazily instead of building a tuple of iterators at the outset. 2008-02-28 22:30:42 +00:00
Christian Heimes cdddf18768 The empty tuple is usually a singleton with a much higher refcnt than 1 2008-02-28 11:18:49 +00:00
Raymond Hettinger 3bd771263d One too many decrefs. 2008-02-27 01:08:04 +00:00
Raymond Hettinger 93e804da9c Add itertools.combinations(). 2008-02-26 23:40:50 +00:00
Facundo Batista b1d70e2252 Coerced PyBool_Type to be able to compare it. 2008-02-25 23:46:02 +00:00
Raymond Hettinger 9d63837e9b Make sure the itertools filter functions give the same performance for func=bool as func=None. 2008-02-25 22:42:32 +00:00
Raymond Hettinger 532316dfa6 Add more comments 2008-02-23 04:03:50 +00:00
Raymond Hettinger 73d7963242 Improve the implementation of itertools.product() 
* Fix-up issues pointed-out by Neal Norwitz.
* Add extensive comments.
* The lz->result variable is now a tuple instead of a list.
* Use fast macro getitem/setitem calls so most code is in-line.
* Re-use the result tuple if available (modify in-place instead of copy).
 2008-02-23 02:20:41 +00:00
Raymond Hettinger 50986cc45b First draft for itertools.product(). Docs and other updates forthcoming. 2008-02-22 03:16:42 +00:00
Raymond Hettinger 473170908e Make starmap() match its pure python definition and accept any itertable input (not just tuples). 2008-01-17 03:02:14 +00:00
Christian Heimes e93237dfcc #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. 2007-12-19 02:37:44 +00:00
Raymond Hettinger 50e90e265f itertools.count() no longer limited to sys.maxint. 2007-10-04 00:20:27 +00:00
Martin v. Löwis 6819210b9e PEP 3123: Provide forward compatibility with Python 3.0, while keeping 
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
 2007-07-21 06:55:02 +00:00
Kristján Valur Jónsson f030394de3 Fix problems in x64 build that were discovered by the testsuite: 
- Reenable modules on x64 that had been disabled aeons ago for Itanium.
- Cleared up confusion about compilers for 64 bit windows.  There is only Itanium and x64.  Added macros MS_WINI64 and MS_WINX64 for those rare cases where it matters, such as the disabling of modules above.
- Set target platform (_WIN32_WINNT and WINVER) to 0x0501 (XP) for x64, and 0x0400 (NT 4.0) otherwise, which are the targeted minimum platforms.
- Fixed thread_nt.h.  The emulated InterlockedCompareExchange function didn´t work on x64, probaby due to the lack of a "volatile" specifier.  Anyway, win95 is no longer a target platform.
- Itertools module used wrong constant to check for overflow in count()
- PyInt_AsSsize_t couldn't deal with attribute error when accessing the __long__ member.
- PyLong_FromSsize_t() incorrectly specified that the operand were unsigned.

With these changes, the x64 passes the testsuite, for those modules present.
 2007-05-03 20:27:03 +00:00
Raymond Hettinger 1b6ca54c44 Remove filler struct item and fix leak. 2007-02-21 17:22:05 +00:00
Raymond Hettinger d36862cf78 Add itertools.izip_longest(). 2007-02-21 05:20:38 +00:00
Raymond Hettinger 6d121f168c Do not let overflows in enumerate() and count() pass silently. 2007-02-08 00:07:32 +00:00
Georg Brandl b84c13792d Bug #1486663: don't reject keyword arguments for subclasses of builtin 
types.
 2007-01-21 10:28:43 +00:00
Jack Diederich 36234e8f66 * regression bug, count_next was coercing a Py_ssize_t to an unsigned Py_size_t 
which breaks negative counts
* added test for negative numbers
will backport to 2.5.1
 2006-09-21 17:50:26 +00:00
Neal Norwitz 69e8897505 Bug #1550714: fix SystemError from itertools.tee on negative value for n. 
Needs backport to 2.5.1 and earlier.
 2006-09-02 02:58:13 +00:00
Neal Norwitz 9029b5f289 nextlink can be NULL if teedataobject_new fails, so use XINCREF. 
Ensure that dataobj is never NULL.

Reported by Klocwork #102
 2006-07-23 07:59:00 +00:00
Neal Norwitz 2f3136b8f0 Fix compiler warning (and whitespace) on Mac OS 10.4. (A lot of this code looked duplicated, I wonder if a utility function could help reduce the duplication here.) 2006-05-27 05:18:57 +00:00
Jack Diederich 6c433a91d5 use Py_ssize_t in places that may need it 2006-05-26 11:15:17 +00:00
Thomas Wouters b3deb94dc6 Add missing PyObject_GC_Track call, causing *some* itertools.tee objects to 
not be tracked by GC. This fixes 254 of test_generators' refleaks on my
machine, but I'm sure something else will make them come back :>

Not adding a separate test for this kind of cycle, since the existing
fib/m235 already test them in more extensive ways than any 'minimal' test
has been able to manage.
 2006-04-15 22:33:13 +00:00
Thomas Wouters 19bf33bc7a Make itertools.tee and its internal teedataobject participate in GC. This 
alone does not solve the leak in test_generators, unfortunately, but it is
part of test_generators' problem and it does solve other cycles.
 2006-03-27 21:02:13 +00:00
Martin v. Löwis 02cbf4ae4b More unconsting. 2006-02-27 17:20:04 +00:00
Martin v. Löwis ad0a4629be Use Py_ssize_t for counts and sizes. 2006-02-16 14:30:23 +00:00
Armin Rigo f5b3e36493 Renamed _length_cue() to __length_hint__(). See: 
http://mail.python.org/pipermail/python-dev/2006-February/060524.html
 2006-02-11 21:32:43 +00:00
Neal Norwitz 1ac754fa10 Check return result from Py_InitModule*(). This API can fail. 
Probably should be backported.
 2006-01-19 06:09:39 +00:00