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* Implement PEP 238 in its (almost) full glory.Guido van Rossum2001-08-081-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | This introduces: - A new operator // that means floor division (the kind of division where 1/2 is 0). - The "future division" statement ("from __future__ import division) which changes the meaning of the / operator to implement "true division" (where 1/2 is 0.5). - New overloadable operators __truediv__ and __floordiv__. - New slots in the PyNumberMethods struct for true and floor division, new abstract APIs for them, new opcodes, and so on. I emphasize that without the future division statement, the semantics of / will remain unchanged until Python 3.0. Not yet implemented are warnings (default off) when / is used with int or long arguments. This has been on display since 7/31 as SF patch #443474. Flames to /dev/null.
* Merge of descr-branch back into trunk.Tim Peters2001-08-021-1/+19
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* Cruft cleanup: Removed the unused last_is_sticky argument from the internalTim Peters2001-05-281-2/+2
| | | | _PyTuple_Resize().
* Reimplement PySequence_Contains() and instance_contains(), so they workTim Peters2001-05-051-21/+20
| | | | | | | | | safely together and don't duplicate logic (the common logic was factored out into new private API function _PySequence_IterContains()). Visible change: some_complex_number in some_instance no longer blows up if some_instance has __getitem__ but neither __contains__ nor __iter__. test_iter changed to ensure that remains true.
* Generalize PySequence_Count() (operator.countOf) to work with iterators.Tim Peters2001-05-051-13/+31
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* Make 'x in y' and 'x not in y' (PySequence_Contains) play nice w/ iterators.Tim Peters2001-05-051-29/+34
| | | | | | | | | | | | | NEEDS DOC CHANGES A few more AttributeErrors turned into TypeErrors, but in test_contains this time. The full story for instance objects is pretty much unexplainable, because instance_contains() tries its own flavor of iteration-based containment testing first, and PySequence_Contains doesn't get a chance at it unless instance_contains() blows up. A consequence is that some_complex_number in some_instance dies with a TypeError unless some_instance.__class__ defines __iter__ but does not define __getitem__.
* Fix a tiny and unlikely memory leak. Was there before too, and actuallyTim Peters2001-05-051-1/+3
| | | | several of these turned up and got fixed during the iteration crusade.
* Generalize tuple() to work nicely with iterators.Tim Peters2001-05-051-40/+47
| | | | | | | | | | | | | | | | | | | | | NEEDS DOC CHANGES. This one surprised me! While I expected tuple() to be a no-brainer, turns out it's actually dripping with consequences: 1. It will *allow* the popular PySequence_Fast() to work with any iterable object (code for that not yet checked in, but should be trivial). 2. It caused two std tests to fail. This because some places used PyTuple_Sequence() (the C spelling of tuple()) as an indirect way to test whether something *is* a sequence. But tuple() code only looked for the existence of sq->item to determine that, and e.g. an instance passed that test whether or not it supported the other operations tuple() needed (e.g., __len__). So some things the tests *expected* to fail with an AttributeError now fail with a TypeError instead. This looks like an improvement to me; e.g., test_coercion used to produce 559 TypeErrors and 2 AttributeErrors, and now they're all TypeErrors. The error details are more informative too, because the places calling this were *looking* for TypeErrors in order to replace the generic tuple() "not a sequence" msg with their own more specific text, and AttributeErrors snuck by that.
* Make PyIter_Next() a little smarter (wrt its knowledge of iteratorTim Peters2001-05-051-11/+16
| | | | internals) so clients can be a lot dumber (wrt their knowledge).
* Plug a memory leak in list(), when appending to the result list.Tim Peters2001-05-021-5/+9
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* Generalize list(seq) to work with iterators. This also generalizes list()Tim Peters2001-05-011-31/+57
| | | | | | | | | | | | | to no longer insist that len(seq) be defined. NEEDS DOC CHANGES. This is meant to be a model for how other functions of this ilk (max, filter, etc) can be generalized similarly. Feel encouraged to grab your favorite and convert it! Note some cute consequences: list(file) == file.readlines() == list(file.xreadlines()) list(dict) == dict.keys() list(dict.iteritems()) = dict.items() list(xrange(i, j, k)) == range(i, j, k)
* Mondo changes to the iterator stuff, without changing how Python codeGuido van Rossum2001-04-231-3/+25
| | | | | | | | | | | | | | | | | | | | | | | | sees it (test_iter.py is unchanged). - Added a tp_iternext slot, which calls the iterator's next() method; this is much faster for built-in iterators over built-in types such as lists and dicts, speeding up pybench's ForLoop with about 25% compared to Python 2.1. (Now there's a good argument for iterators. ;-) - Renamed the built-in sequence iterator SeqIter, affecting the C API functions for it. (This frees up the PyIter prefix for generic iterator operations.) - Added PyIter_Check(obj), which checks that obj's type has a tp_iternext slot and that the proper feature flag is set. - Added PyIter_Next(obj) which calls the tp_iternext slot. It has a somewhat complex return condition due to the need for speed: when it returns NULL, it may not have set an exception condition, meaning the iterator is exhausted; when the exception StopIteration is set (or a derived exception class), it means the same thing; any other exception means some other error occurred.
* Iterators phase 1. This comprises:Guido van Rossum2001-04-201-0/+17
| | | | | | | | | | | | | | | | | | | | | | new slot tp_iter in type object, plus new flag Py_TPFLAGS_HAVE_ITER new C API PyObject_GetIter(), calls tp_iter new builtin iter(), with two forms: iter(obj), and iter(function, sentinel) new internal object types iterobject and calliterobject new exception StopIteration new opcodes for "for" loops, GET_ITER and FOR_ITER (also supported by dis.py) new magic number for .pyc files new special method for instances: __iter__() returns an iterator iteration over dictionaries: "for x in dict" iterates over the keys iteration over files: "for x in file" iterates over lines TODO: documentation test suite decide whether to use a different way to spell iter(function, sentinal) decide whether "for key in dict" is a good idea use iterators in map/filter/reduce, min/max, and elsewhere (in/not in?) speed tuning (make next() a slot tp_next???)
* Move the code implementing isinstance() and issubclass() to new CGuido van Rossum2001-03-211-0/+112
| | | | | APIs, PyObject_IsInstance() and PyObject_IsSubclass() -- both returning an int, or -1 for errors.
* Rich comparisons fall-out:Guido van Rossum2001-01-171-4/+4
| | | | | | - Renamed Py_TPFLAGS_NEWSTYLENUMBER to Py_TPFLAGS_CHECKTYPES. - Use PyObject_RichCompareBool() in PySequence_Contains().
* Massive changes as per PEP 208. Read it for details.Neil Schemenauer2001-01-041-728/+318
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* Fix for SF bug #115987: PyInstance_HalfBinOp does not initialize theThomas Wouters2000-10-051-11/+11
| | | | | | result-object-pointer that is passed in, when an exception occurs during coercion. The pointer has to be explicitly initialized in the caller to avoid putting trash on the Python stack.
* Cosmetic cleanup by Vladimir.Thomas Wouters2000-09-021-43/+49
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* Rewritten some pieces of PyNumber_InPlaceAdd() for clarity.Guido van Rossum2000-09-011-15/+20
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* Fix grouping, again. This time properly :-) Sorry, guys.Thomas Wouters2000-09-011-3/+3
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* Add parens suggested by gcc -Wall.Guido van Rossum2000-09-011-2/+3
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* Fix grouping: this is how I intended it, misguided as I was in booleanThomas Wouters2000-08-311-2/+2
| | | | operator associativity.
* Removed compiler warning about wanting explicit grouping around &&Fred Drake2000-08-311-4/+6
| | | | | expression next to a || expression; this is a readability-inspired warning from GCC.
* Support for the in-place operations introduced by augmented assignment. OnlyThomas Wouters2000-08-241-0/+514
| | | | | the list object supports this currently, but other candidates are gladly accepted (like arraymodule and such.)
* Addendum to previous change: now that 'f' is not unconditionallyThomas Wouters2000-08-231-11/+11
| | | | initialized in the 'if (..)', do so manually.
* Add extra check on whether 'tp_as_number' is still non-NULL after coercion,Thomas Wouters2000-08-231-24/+28
| | | | | in the PyNumber_* functions. Also, remove unnecessary tests from PyNumber_Multiply: after BINOP(), neither argument can be an instance.
* Apply SF patch #101029: call __getitem__ with a proper slice object if thereThomas Wouters2000-08-171-0/+37
| | | | | | | | is no __getslice__ available. Also does the same for C extension types. Includes rudimentary documentation (it could use a cross reference to the section on slice objects, I couldn't figure out how to do that) and a test suite for all Python __hooks__ I could think of, including the new behaviour.
* Remobe beopen/cnri/cwi copyrights, according to CNRI instructions.Guido van Rossum2000-08-031-10/+0
| | | | | | This doesn't change the copyright status for these files -- just the markings! Doing it on the main branch for these three files for which the HEAD revision was pushed back into 1.6.
* ANSIfication: remove very-old-varargs code, fix function declarations soThomas Wouters2000-07-221-34/+0
| | | | they include prototypes.
* Restore PyXXX_Length() APIs for binary compatibility.Marc-André Lemburg2000-07-171-0/+24
| | | | | | New code will see the macros and therefore use the PyXXX_Size() APIs instead. By Thomas Wouters.
* change abstract size functions PySequence_Size &c.Jeremy Hylton2000-07-121-8/+8
| | | | add macros for backwards compatibility with C source
* type_error(): Added "const" to signature to eliminate warning with -Wall.Fred Drake2000-07-091-1/+1
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* ANSI-fication of the sources.Fred Drake2000-07-091-140/+55
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* Nuke all remaining occurrences of Py_PROTO and Py_FPROTO.Tim Peters2000-07-091-13/+13
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* Change copyright notice - 2nd try.Guido van Rossum2000-06-301-6/+0
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* Change copyright notice.Guido van Rossum2000-06-301-22/+7
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* Patch from /F:Andrew M. Kuchling2000-06-181-0/+20
| | | | | this patch introduces PySequence_Fast and PySequence_Fast_GET_ITEM, and modifies the list.extend method to accept any kind of sequence.
* Marc-Andre's third try at this bulk patch seems to work (except thatGuido van Rossum2000-04-051-42/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | his copy of test_contains.py seems to be broken -- the lines he deleted were already absent). Checkin messages: New Unicode support for int(), float(), complex() and long(). - new APIs PyInt_FromUnicode() and PyLong_FromUnicode() - added support for Unicode to PyFloat_FromString() - new encoding API PyUnicode_EncodeDecimal() which converts Unicode to a decimal char* string (used in the above new APIs) - shortcuts for calls like int(<int object>) and float(<float obj>) - tests for all of the above Unicode compares and contains checks: - comparing Unicode and non-string types now works; TypeErrors are masked, all other errors such as ValueError during Unicode coercion are passed through (note that PyUnicode_Compare does not implement the masking -- PyObject_Compare does this) - contains now works for non-string types too; TypeErrors are masked and 0 returned; all other errors are passed through Better testing support for the standard codecs. Misc minor enhancements, such as an alias dbcs for the mbcs codec. Changes: - PyLong_FromString() now applies the same error checks as does PyInt_FromString(): trailing garbage is reported as error and not longer silently ignored. The only characters which may be trailing the digits are 'L' and 'l' -- these are still silently ignored. - string.ato?() now directly interface to int(), long() and float(). The error strings are now a little different, but the type still remains the same. These functions are now ready to get declared obsolete ;-) - PyNumber_Int() now also does a check for embedded NULL chars in the input string; PyNumber_Long() already did this (and still does) Followed by: Looks like I've gone a step too far there... (and test_contains.py seem to have a bug too). I've changed back to reporting all errors in PyUnicode_Contains() and added a few more test cases to test_contains.py (plus corrected the join() NameError).
* Many changes for Unicode, by Marc-Andre Lemburg.Guido van Rossum2000-03-101-14/+134
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* Patch by Moshe Zadka: remove the string special case inGuido van Rossum2000-03-071-18/+0
| | | | | PySequence_Contains() now that string objects have this code in their tp_contains.
* Patch by Mozhe Zadka, for __contains__ (overloading 'in'). ThisGuido van Rossum2000-02-281-1/+8
| | | | | patches PySequence_Contains() to check for a valid sq_contains field. More to follow.
* Allow using long integers as arguments to PyObject_GetItem(), _SetItem(),Andrew M. Kuchling2000-02-231-1/+19
| | | | | | and _DelItem(). In sequence multiplication by a long, only call PyErr_Occurred() when the value returned is -1.
* Make multiplying a sequence by a long integer (5L * 'b') legalAndrew M. Kuchling2000-02-141-2/+13
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* Mainlining the string_methods branch. See branch revision logBarry Warsaw1999-10-121-119/+61
| | | | messages for specific changes.
* Patch by Charles Waldman -- remove unneeded and even harmful test forGuido van Rossum1999-01-101-10/+0
| | | | | float to the negative power (which is already and better done in floatobject.c.)
* Remove prototype for PyOS_strtol -- Chris Herborth.Guido van Rossum1998-12-101-1/+0
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* Believe it or not, Solaris 2.6 strtod() can move the end pointerGuido van Rossum1998-10-011-1/+6
| | | | | *beyond* the null byte at the end of the input string, when the input is inf(inity). Discovered by Greg Ward.
* Better error messages when a sequence is indexed with a non-integer.Guido van Rossum1998-08-131-6/+17
| | | | | | | Previously, this said "unsubscriptable object"; in 1.5.1, the reverse problem existed, where None[''] would complain about a non-integer index. This fix does the right thing in all cases (for get, set and del item).
* Better error messages when raising ValueError for int and longGuido van Rossum1998-08-041-6/+9
| | | | | literals. (The previous version of this code would not show the offending input, even though there was code that attempted this.)
* Add special case to PySequence_List() so that list() of a list isGuido van Rossum1998-07-101-0/+6
| | | | | | faster (using PyList_GetSlice()). Also added a test for a NULL argument, as with PySequence_Tuple(). (Hmm... Better names for these two would be PyList_FromSequence() and PyTuple_FromSequence(). Oh well.)
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