bpo-20180: convert most of itertoolsmodule.c to use Argument Clinic (GH-9164)

This commit is contained in:
Tal Einat 2018-09-12 00:49:13 +03:00 committed by Raymond Hettinger
parent 90fc8980bb
commit c4bccd3c76
2 changed files with 695 additions and 220 deletions

View file

@ -61,4 +61,452 @@ itertools__grouper(PyTypeObject *type, PyObject *args, PyObject *kwargs)
exit:
return return_value;
}
/*[clinic end generated code: output=82e10c91569d2b95 input=a9049054013a1b77]*/
PyDoc_STRVAR(itertools_teedataobject__doc__,
"teedataobject(iterable, values, next, /)\n"
"--\n"
"\n"
"Data container common to multiple tee objects.");
static PyObject *
itertools_teedataobject_impl(PyTypeObject *type, PyObject *it,
PyObject *values, PyObject *next);
static PyObject *
itertools_teedataobject(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
PyObject *it;
PyObject *values;
PyObject *next;
if ((type == &teedataobject_type) &&
!_PyArg_NoKeywords("teedataobject", kwargs)) {
goto exit;
}
if (!PyArg_ParseTuple(args, "OO!O:teedataobject",
&it, &PyList_Type, &values, &next)) {
goto exit;
}
return_value = itertools_teedataobject_impl(type, it, values, next);
exit:
return return_value;
}
PyDoc_STRVAR(itertools__tee__doc__,
"_tee(iterable, /)\n"
"--\n"
"\n"
"Iterator wrapped to make it copyable.");
static PyObject *
itertools__tee_impl(PyTypeObject *type, PyObject *iterable);
static PyObject *
itertools__tee(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
PyObject *iterable;
if ((type == &tee_type) &&
!_PyArg_NoKeywords("_tee", kwargs)) {
goto exit;
}
if (!PyArg_UnpackTuple(args, "_tee",
1, 1,
&iterable)) {
goto exit;
}
return_value = itertools__tee_impl(type, iterable);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_tee__doc__,
"tee($module, iterable, n=2, /)\n"
"--\n"
"\n"
"Returns a tuple of n independent iterators.");
#define ITERTOOLS_TEE_METHODDEF \
{"tee", (PyCFunction)itertools_tee, METH_FASTCALL, itertools_tee__doc__},
static PyObject *
itertools_tee_impl(PyObject *module, PyObject *iterable, Py_ssize_t n);
static PyObject *
itertools_tee(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
{
PyObject *return_value = NULL;
PyObject *iterable;
Py_ssize_t n = 2;
if (!_PyArg_ParseStack(args, nargs, "O|n:tee",
&iterable, &n)) {
goto exit;
}
return_value = itertools_tee_impl(module, iterable, n);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_cycle__doc__,
"cycle(iterable, /)\n"
"--\n"
"\n"
"Return elements from the iterable until it is exhausted. Then repeat the sequence indefinitely.");
static PyObject *
itertools_cycle_impl(PyTypeObject *type, PyObject *iterable);
static PyObject *
itertools_cycle(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
PyObject *iterable;
if ((type == &cycle_type) &&
!_PyArg_NoKeywords("cycle", kwargs)) {
goto exit;
}
if (!PyArg_UnpackTuple(args, "cycle",
1, 1,
&iterable)) {
goto exit;
}
return_value = itertools_cycle_impl(type, iterable);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_dropwhile__doc__,
"dropwhile(predicate, iterable, /)\n"
"--\n"
"\n"
"Drop items from the iterable while predicate(item) is true.\n"
"\n"
"Afterwards, return every element until the iterable is exhausted.");
static PyObject *
itertools_dropwhile_impl(PyTypeObject *type, PyObject *func, PyObject *seq);
static PyObject *
itertools_dropwhile(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
PyObject *func;
PyObject *seq;
if ((type == &dropwhile_type) &&
!_PyArg_NoKeywords("dropwhile", kwargs)) {
goto exit;
}
if (!PyArg_UnpackTuple(args, "dropwhile",
2, 2,
&func, &seq)) {
goto exit;
}
return_value = itertools_dropwhile_impl(type, func, seq);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_takewhile__doc__,
"takewhile(predicate, iterable, /)\n"
"--\n"
"\n"
"Return successive entries from an iterable as long as the predicate evaluates to true for each entry.");
static PyObject *
itertools_takewhile_impl(PyTypeObject *type, PyObject *func, PyObject *seq);
static PyObject *
itertools_takewhile(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
PyObject *func;
PyObject *seq;
if ((type == &takewhile_type) &&
!_PyArg_NoKeywords("takewhile", kwargs)) {
goto exit;
}
if (!PyArg_UnpackTuple(args, "takewhile",
2, 2,
&func, &seq)) {
goto exit;
}
return_value = itertools_takewhile_impl(type, func, seq);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_starmap__doc__,
"starmap(function, iterable, /)\n"
"--\n"
"\n"
"Return an iterator whose values are returned from the function evaluated with an argument tuple taken from the given sequence.");
static PyObject *
itertools_starmap_impl(PyTypeObject *type, PyObject *func, PyObject *seq);
static PyObject *
itertools_starmap(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
PyObject *func;
PyObject *seq;
if ((type == &starmap_type) &&
!_PyArg_NoKeywords("starmap", kwargs)) {
goto exit;
}
if (!PyArg_UnpackTuple(args, "starmap",
2, 2,
&func, &seq)) {
goto exit;
}
return_value = itertools_starmap_impl(type, func, seq);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_chain_from_iterable__doc__,
"from_iterable($type, iterable, /)\n"
"--\n"
"\n"
"Alternative chain() constructor taking a single iterable argument that evaluates lazily.");
#define ITERTOOLS_CHAIN_FROM_ITERABLE_METHODDEF \
{"from_iterable", (PyCFunction)itertools_chain_from_iterable, METH_O|METH_CLASS, itertools_chain_from_iterable__doc__},
PyDoc_STRVAR(itertools_combinations__doc__,
"combinations(iterable, r)\n"
"--\n"
"\n"
"Return successive r-length combinations of elements in the iterable.\n"
"\n"
"combinations(range(4), 3) --> (0,1,2), (0,1,3), (0,2,3), (1,2,3)");
static PyObject *
itertools_combinations_impl(PyTypeObject *type, PyObject *iterable,
Py_ssize_t r);
static PyObject *
itertools_combinations(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"iterable", "r", NULL};
static _PyArg_Parser _parser = {"On:combinations", _keywords, 0};
PyObject *iterable;
Py_ssize_t r;
if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
&iterable, &r)) {
goto exit;
}
return_value = itertools_combinations_impl(type, iterable, r);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_combinations_with_replacement__doc__,
"combinations_with_replacement(iterable, r)\n"
"--\n"
"\n"
"Return successive r-length combinations of elements in the iterable allowing individual elements to have successive repeats.\n"
"\n"
"combinations_with_replacement(\'ABC\', 2) --> AA AB AC BB BC CC\"");
static PyObject *
itertools_combinations_with_replacement_impl(PyTypeObject *type,
PyObject *iterable,
Py_ssize_t r);
static PyObject *
itertools_combinations_with_replacement(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"iterable", "r", NULL};
static _PyArg_Parser _parser = {"On:combinations_with_replacement", _keywords, 0};
PyObject *iterable;
Py_ssize_t r;
if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
&iterable, &r)) {
goto exit;
}
return_value = itertools_combinations_with_replacement_impl(type, iterable, r);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_permutations__doc__,
"permutations(iterable, r=None)\n"
"--\n"
"\n"
"Return successive r-length permutations of elements in the iterable.\n"
"\n"
"permutations(range(3), 2) --> (0,1), (0,2), (1,0), (1,2), (2,0), (2,1)");
static PyObject *
itertools_permutations_impl(PyTypeObject *type, PyObject *iterable,
PyObject *robj);
static PyObject *
itertools_permutations(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"iterable", "r", NULL};
static _PyArg_Parser _parser = {"O|O:permutations", _keywords, 0};
PyObject *iterable;
PyObject *robj = Py_None;
if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
&iterable, &robj)) {
goto exit;
}
return_value = itertools_permutations_impl(type, iterable, robj);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_accumulate__doc__,
"accumulate(iterable, func=None)\n"
"--\n"
"\n"
"Return series of accumulated sums (or other binary function results).");
static PyObject *
itertools_accumulate_impl(PyTypeObject *type, PyObject *iterable,
PyObject *binop);
static PyObject *
itertools_accumulate(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"iterable", "func", NULL};
static _PyArg_Parser _parser = {"O|O:accumulate", _keywords, 0};
PyObject *iterable;
PyObject *binop = Py_None;
if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
&iterable, &binop)) {
goto exit;
}
return_value = itertools_accumulate_impl(type, iterable, binop);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_compress__doc__,
"compress(data, selectors)\n"
"--\n"
"\n"
"Return data elements corresponding to true selector elements.\n"
"\n"
"Forms a shorter iterator from selected data elements using the selectors to\n"
"choose the data elements.");
static PyObject *
itertools_compress_impl(PyTypeObject *type, PyObject *seq1, PyObject *seq2);
static PyObject *
itertools_compress(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"data", "selectors", NULL};
static _PyArg_Parser _parser = {"OO:compress", _keywords, 0};
PyObject *seq1;
PyObject *seq2;
if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
&seq1, &seq2)) {
goto exit;
}
return_value = itertools_compress_impl(type, seq1, seq2);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_filterfalse__doc__,
"filterfalse(function, iterable, /)\n"
"--\n"
"\n"
"Return those items of iterable for which function(item) is false.\n"
"\n"
"If function is None, return the items that are false.");
static PyObject *
itertools_filterfalse_impl(PyTypeObject *type, PyObject *func, PyObject *seq);
static PyObject *
itertools_filterfalse(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
PyObject *func;
PyObject *seq;
if ((type == &filterfalse_type) &&
!_PyArg_NoKeywords("filterfalse", kwargs)) {
goto exit;
}
if (!PyArg_UnpackTuple(args, "filterfalse",
2, 2,
&func, &seq)) {
goto exit;
}
return_value = itertools_filterfalse_impl(type, func, seq);
exit:
return return_value;
}
PyDoc_STRVAR(itertools_count__doc__,
"count(start=0, step=1)\n"
"--\n"
"\n"
"Return a count object whose .__next__() method returns consecutive values.\n"
"\n"
"Equivalent to:\n"
" def count(firstval=0, step=1):\n"
" x = firstval\n"
" while 1:\n"
" yield x\n"
" x += step");
static PyObject *
itertools_count_impl(PyTypeObject *type, PyObject *long_cnt,
PyObject *long_step);
static PyObject *
itertools_count(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"start", "step", NULL};
static _PyArg_Parser _parser = {"|OO:count", _keywords, 0};
PyObject *long_cnt = NULL;
PyObject *long_step = NULL;
if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
&long_cnt, &long_step)) {
goto exit;
}
return_value = itertools_count_impl(type, long_cnt, long_step);
exit:
return return_value;
}
/*[clinic end generated code: output=d9eb9601bd3296ef input=a9049054013a1b77]*/

View file

@ -11,11 +11,39 @@
module itertools
class itertools.groupby "groupbyobject *" "&groupby_type"
class itertools._grouper "_grouperobject *" "&_grouper_type"
class itertools.teedataobject "teedataobject *" "&teedataobject_type"
class itertools._tee "teeobject *" "&tee_type"
class itertools.cycle "cycleobject *" "&cycle_type"
class itertools.dropwhile "dropwhileobject *" "&dropwhile_type"
class itertools.takewhile "takewhileobject *" "&takewhile_type"
class itertools.starmap "starmapobject *" "&starmap_type"
class itertools.chain "chainobject *" "&chain_type"
class itertools.combinations "combinationsobject *" "&combinations_type"
class itertools.combinations_with_replacement "cwr_object *" "&cwr_type"
class itertools.permutations "permutationsobject *" "&permutations_type"
class itertools.accumulate "accumulateobject *" "&accumulate_type"
class itertools.compress "compressobject *" "&compress_type"
class itertools.filterfalse "filterfalseobject *" "&filterfalse_type"
class itertools.count "countobject *" "&count_type"
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=9d506f5bb9177570]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=ea05c93c6d94726a]*/
static PyTypeObject groupby_type;
static PyTypeObject _grouper_type;
static PyTypeObject teedataobject_type;
static PyTypeObject tee_type;
static PyTypeObject cycle_type;
static PyTypeObject dropwhile_type;
static PyTypeObject takewhile_type;
static PyTypeObject starmap_type;
static PyTypeObject combinations_type;
static PyTypeObject cwr_type;
static PyTypeObject permutations_type;
static PyTypeObject accumulate_type;
static PyTypeObject compress_type;
static PyTypeObject filterfalse_type;
static PyTypeObject count_type;
#include "clinic/itertoolsmodule.c.h"
@ -539,18 +567,25 @@ teedataobject_reduce(teedataobject *tdo, PyObject *Py_UNUSED(ignored))
tdo->nextlink ? tdo->nextlink : Py_None);
}
static PyTypeObject teedataobject_type;
/*[clinic input]
@classmethod
itertools.teedataobject.__new__
iterable as it: object
values: object(subclass_of='&PyList_Type')
next: object
/
Data container common to multiple tee objects.
[clinic start generated code]*/
static PyObject *
teedataobject_new(PyTypeObject *type, PyObject *args, PyObject *kw)
itertools_teedataobject_impl(PyTypeObject *type, PyObject *it,
PyObject *values, PyObject *next)
/*[clinic end generated code: output=3343ceb07e08df5e input=be60f2fabd2b72ba]*/
{
teedataobject *tdo;
PyObject *it, *values, *next;
Py_ssize_t i, len;
assert(type == &teedataobject_type);
if (!PyArg_ParseTuple(args, "OO!O", &it, &PyList_Type, &values, &next))
return NULL;
tdo = (teedataobject *)teedataobject_newinternal(it);
if (!tdo)
@ -592,8 +627,6 @@ static PyMethodDef teedataobject_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(teedataobject_doc, "Data container common to multiple tee objects.");
static PyTypeObject teedataobject_type = {
PyVarObject_HEAD_INIT(0, 0) /* Must fill in type value later */
"itertools._tee_dataobject", /* tp_name */
@ -616,7 +649,7 @@ static PyTypeObject teedataobject_type = {
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
teedataobject_doc, /* tp_doc */
itertools_teedataobject__doc__, /* tp_doc */
(traverseproc)teedataobject_traverse, /* tp_traverse */
(inquiry)teedataobject_clear, /* tp_clear */
0, /* tp_richcompare */
@ -633,7 +666,7 @@ static PyTypeObject teedataobject_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
teedataobject_new, /* tp_new */
itertools_teedataobject, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -716,13 +749,18 @@ tee_fromiterable(PyObject *iterable)
return (PyObject *)to;
}
static PyObject *
tee_new(PyTypeObject *type, PyObject *args, PyObject *kw)
{
PyObject *iterable;
/*[clinic input]
@classmethod
itertools._tee.__new__
iterable: object
/
Iterator wrapped to make it copyable.
[clinic start generated code]*/
if (!PyArg_UnpackTuple(args, "_tee", 1, 1, &iterable))
return NULL;
static PyObject *
itertools__tee_impl(PyTypeObject *type, PyObject *iterable)
/*[clinic end generated code: output=b02d3fd26c810c3f input=adc0779d2afe37a2]*/
{
return tee_fromiterable(iterable);
}
@ -771,9 +809,6 @@ tee_setstate(teeobject *to, PyObject *state)
Py_RETURN_NONE;
}
PyDoc_STRVAR(teeobject_doc,
"Iterator wrapped to make it copyable");
static PyMethodDef tee_methods[] = {
{"__copy__", (PyCFunction)tee_copy, METH_NOARGS, teecopy_doc},
{"__reduce__", (PyCFunction)tee_reduce, METH_NOARGS, reduce_doc},
@ -803,7 +838,7 @@ static PyTypeObject tee_type = {
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
teeobject_doc, /* tp_doc */
itertools__tee__doc__, /* tp_doc */
(traverseproc)tee_traverse, /* tp_traverse */
(inquiry)tee_clear, /* tp_clear */
0, /* tp_richcompare */
@ -820,19 +855,26 @@ static PyTypeObject tee_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
tee_new, /* tp_new */
itertools__tee, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
/*[clinic input]
itertools.tee
iterable: object
n: Py_ssize_t = 2
/
Returns a tuple of n independent iterators.
[clinic start generated code]*/
static PyObject *
tee(PyObject *self, PyObject *args)
itertools_tee_impl(PyObject *module, PyObject *iterable, Py_ssize_t n)
/*[clinic end generated code: output=1c64519cd859c2f0 input=c99a1472c425d66d]*/
{
Py_ssize_t i, n=2;
PyObject *it, *iterable, *copyable, *copyfunc, *result;
Py_ssize_t i;
PyObject *it, *copyable, *copyfunc, *result;
_Py_IDENTIFIER(__copy__);
if (!PyArg_ParseTuple(args, "O|n", &iterable, &n))
return NULL;
if (n < 0) {
PyErr_SetString(PyExc_ValueError, "n must be >= 0");
return NULL;
@ -885,9 +927,6 @@ tee(PyObject *self, PyObject *args)
return result;
}
PyDoc_STRVAR(tee_doc,
"tee(iterable, n=2) --> tuple of n independent iterators.");
/* cycle object **************************************************************/
@ -901,20 +940,22 @@ typedef struct {
static PyTypeObject cycle_type;
/*[clinic input]
@classmethod
itertools.cycle.__new__
iterable: object
/
Return elements from the iterable until it is exhausted. Then repeat the sequence indefinitely.
[clinic start generated code]*/
static PyObject *
cycle_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_cycle_impl(PyTypeObject *type, PyObject *iterable)
/*[clinic end generated code: output=f60e5ec17a45b35c input=9d1d84bcf66e908b]*/
{
PyObject *it;
PyObject *iterable;
PyObject *saved;
cycleobject *lz;
if (type == &cycle_type && !_PyArg_NoKeywords("cycle", kwds))
return NULL;
if (!PyArg_UnpackTuple(args, "cycle", 1, 1, &iterable))
return NULL;
/* Get iterator. */
it = PyObject_GetIter(iterable);
if (it == NULL)
@ -1041,12 +1082,6 @@ static PyMethodDef cycle_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(cycle_doc,
"cycle(iterable) --> cycle object\n\
\n\
Return elements from the iterable until it is exhausted.\n\
Then repeat the sequence indefinitely.");
static PyTypeObject cycle_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.cycle", /* tp_name */
@ -1070,7 +1105,7 @@ static PyTypeObject cycle_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
cycle_doc, /* tp_doc */
itertools_cycle__doc__, /* tp_doc */
(traverseproc)cycle_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -1087,7 +1122,7 @@ static PyTypeObject cycle_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
cycle_new, /* tp_new */
itertools_cycle, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -1103,19 +1138,24 @@ typedef struct {
static PyTypeObject dropwhile_type;
/*[clinic input]
@classmethod
itertools.dropwhile.__new__
predicate as func: object
iterable as seq: object
/
Drop items from the iterable while predicate(item) is true.
Afterwards, return every element until the iterable is exhausted.
[clinic start generated code]*/
static PyObject *
dropwhile_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_dropwhile_impl(PyTypeObject *type, PyObject *func, PyObject *seq)
/*[clinic end generated code: output=92f9d0d89af149e4 input=d39737147c9f0a26]*/
{
PyObject *func, *seq;
PyObject *it;
dropwhileobject *lz;
if (type == &dropwhile_type && !_PyArg_NoKeywords("dropwhile", kwds))
return NULL;
if (!PyArg_UnpackTuple(args, "dropwhile", 2, 2, &func, &seq))
return NULL;
/* Get iterator. */
it = PyObject_GetIter(seq);
if (it == NULL)
@ -1209,12 +1249,6 @@ static PyMethodDef dropwhile_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(dropwhile_doc,
"dropwhile(predicate, iterable) --> dropwhile object\n\
\n\
Drop items from the iterable while predicate(item) is true.\n\
Afterwards, return every element until the iterable is exhausted.");
static PyTypeObject dropwhile_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.dropwhile", /* tp_name */
@ -1238,7 +1272,7 @@ static PyTypeObject dropwhile_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
dropwhile_doc, /* tp_doc */
itertools_dropwhile__doc__, /* tp_doc */
(traverseproc)dropwhile_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -1255,7 +1289,7 @@ static PyTypeObject dropwhile_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
dropwhile_new, /* tp_new */
itertools_dropwhile, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -1271,19 +1305,22 @@ typedef struct {
static PyTypeObject takewhile_type;
/*[clinic input]
@classmethod
itertools.takewhile.__new__
predicate as func: object
iterable as seq: object
/
Return successive entries from an iterable as long as the predicate evaluates to true for each entry.
[clinic start generated code]*/
static PyObject *
takewhile_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_takewhile_impl(PyTypeObject *type, PyObject *func, PyObject *seq)
/*[clinic end generated code: output=bb179ea7864e2ef6 input=ba5255f7519aa119]*/
{
PyObject *func, *seq;
PyObject *it;
takewhileobject *lz;
if (type == &takewhile_type && !_PyArg_NoKeywords("takewhile", kwds))
return NULL;
if (!PyArg_UnpackTuple(args, "takewhile", 2, 2, &func, &seq))
return NULL;
/* Get iterator. */
it = PyObject_GetIter(seq);
if (it == NULL)
@ -1373,11 +1410,6 @@ static PyMethodDef takewhile_reduce_methods[] = {
setstate_doc},
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(takewhile_doc,
"takewhile(predicate, iterable) --> takewhile object\n\
\n\
Return successive entries from an iterable as long as the\n\
predicate evaluates to true for each entry.");
static PyTypeObject takewhile_type = {
PyVarObject_HEAD_INIT(NULL, 0)
@ -1402,7 +1434,7 @@ static PyTypeObject takewhile_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
takewhile_doc, /* tp_doc */
itertools_takewhile__doc__, /* tp_doc */
(traverseproc)takewhile_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -1419,7 +1451,7 @@ static PyTypeObject takewhile_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
takewhile_new, /* tp_new */
itertools_takewhile, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -1693,19 +1725,22 @@ typedef struct {
static PyTypeObject starmap_type;
/*[clinic input]
@classmethod
itertools.starmap.__new__
function as func: object
iterable as seq: object
/
Return an iterator whose values are returned from the function evaluated with an argument tuple taken from the given sequence.
[clinic start generated code]*/
static PyObject *
starmap_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_starmap_impl(PyTypeObject *type, PyObject *func, PyObject *seq)
/*[clinic end generated code: output=79eeb81d452c6e8d input=844766df6a0d4dad]*/
{
PyObject *func, *seq;
PyObject *it;
starmapobject *lz;
if (type == &starmap_type && !_PyArg_NoKeywords("starmap", kwds))
return NULL;
if (!PyArg_UnpackTuple(args, "starmap", 2, 2, &func, &seq))
return NULL;
/* Get iterator. */
it = PyObject_GetIter(seq);
if (it == NULL)
@ -1776,12 +1811,6 @@ static PyMethodDef starmap_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(starmap_doc,
"starmap(function, sequence) --> starmap object\n\
\n\
Return an iterator whose values are returned from the function evaluated\n\
with an argument tuple taken from the given sequence.");
static PyTypeObject starmap_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.starmap", /* tp_name */
@ -1805,7 +1834,7 @@ static PyTypeObject starmap_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
starmap_doc, /* tp_doc */
itertools_starmap__doc__, /* tp_doc */
(traverseproc)starmap_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -1822,7 +1851,7 @@ static PyTypeObject starmap_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
starmap_new, /* tp_new */
itertools_starmap, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -1868,8 +1897,17 @@ chain_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
return chain_new_internal(type, source);
}
/*[clinic input]
@classmethod
itertools.chain.from_iterable
iterable as arg: object
/
Alternative chain() constructor taking a single iterable argument that evaluates lazily.
[clinic start generated code]*/
static PyObject *
chain_new_from_iterable(PyTypeObject *type, PyObject *arg)
itertools_chain_from_iterable(PyTypeObject *type, PyObject *arg)
/*[clinic end generated code: output=667ae7a7f7b68654 input=72c39e3a2ca3be85]*/
{
PyObject *source;
@ -1985,15 +2023,8 @@ Return a chain object whose .__next__() method returns elements from the\n\
first iterable until it is exhausted, then elements from the next\n\
iterable, until all of the iterables are exhausted.");
PyDoc_STRVAR(chain_from_iterable_doc,
"chain.from_iterable(iterable) --> chain object\n\
\n\
Alternate chain() constructor taking a single iterable argument\n\
that evaluates lazily.");
static PyMethodDef chain_methods[] = {
{"from_iterable", (PyCFunction) chain_new_from_iterable, METH_O | METH_CLASS,
chain_from_iterable_doc},
ITERTOOLS_CHAIN_FROM_ITERABLE_METHODDEF
{"__reduce__", (PyCFunction)chain_reduce, METH_NOARGS,
reduce_doc},
{"__setstate__", (PyCFunction)chain_setstate, METH_O,
@ -2417,21 +2448,27 @@ typedef struct {
static PyTypeObject combinations_type;
/*[clinic input]
@classmethod
itertools.combinations.__new__
iterable: object
r: Py_ssize_t
Return successive r-length combinations of elements in the iterable.
combinations(range(4), 3) --> (0,1,2), (0,1,3), (0,2,3), (1,2,3)
[clinic start generated code]*/
static PyObject *
combinations_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_combinations_impl(PyTypeObject *type, PyObject *iterable,
Py_ssize_t r)
/*[clinic end generated code: output=87a689b39c40039c input=06bede09e3da20f8]*/
{
combinationsobject *co;
Py_ssize_t n;
Py_ssize_t r;
PyObject *pool = NULL;
PyObject *iterable = NULL;
Py_ssize_t *indices = NULL;
Py_ssize_t i;
static char *kwargs[] = {"iterable", "r", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "On:combinations", kwargs,
&iterable, &r))
return NULL;
pool = PySequence_Tuple(iterable);
if (pool == NULL)
@ -2666,12 +2703,6 @@ static PyMethodDef combinations_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(combinations_doc,
"combinations(iterable, r) --> combinations object\n\
\n\
Return successive r-length combinations of elements in the iterable.\n\n\
combinations(range(4), 3) --> (0,1,2), (0,1,3), (0,2,3), (1,2,3)");
static PyTypeObject combinations_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.combinations", /* tp_name */
@ -2695,7 +2726,7 @@ static PyTypeObject combinations_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
combinations_doc, /* tp_doc */
itertools_combinations__doc__, /* tp_doc */
(traverseproc)combinations_traverse,/* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -2712,7 +2743,7 @@ static PyTypeObject combinations_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
combinations_new, /* tp_new */
itertools_combinations, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -2756,22 +2787,27 @@ typedef struct {
static PyTypeObject cwr_type;
/*[clinic input]
@classmethod
itertools.combinations_with_replacement.__new__
iterable: object
r: Py_ssize_t
Return successive r-length combinations of elements in the iterable allowing individual elements to have successive repeats.
combinations_with_replacement('ABC', 2) --> AA AB AC BB BC CC"
[clinic start generated code]*/
static PyObject *
cwr_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_combinations_with_replacement_impl(PyTypeObject *type,
PyObject *iterable,
Py_ssize_t r)
/*[clinic end generated code: output=48b26856d4e659ca input=dc2a8c7ba785fad7]*/
{
cwrobject *co;
Py_ssize_t n;
Py_ssize_t r;
PyObject *pool = NULL;
PyObject *iterable = NULL;
Py_ssize_t *indices = NULL;
Py_ssize_t i;
static char *kwargs[] = {"iterable", "r", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds,
"On:combinations_with_replacement",
kwargs, &iterable, &r))
return NULL;
pool = PySequence_Tuple(iterable);
if (pool == NULL)
@ -2996,13 +3032,6 @@ static PyMethodDef cwr_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(cwr_doc,
"combinations_with_replacement(iterable, r) --> combinations_with_replacement object\n\
\n\
Return successive r-length combinations of elements in the iterable\n\
allowing individual elements to have successive repeats.\n\
combinations_with_replacement('ABC', 2) --> AA AB AC BB BC CC");
static PyTypeObject cwr_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.combinations_with_replacement", /* tp_name */
@ -3026,7 +3055,7 @@ static PyTypeObject cwr_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
cwr_doc, /* tp_doc */
itertools_combinations_with_replacement__doc__, /* tp_doc */
(traverseproc)cwr_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -3043,7 +3072,7 @@ static PyTypeObject cwr_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
cwr_new, /* tp_new */
itertools_combinations_with_replacement, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -3085,23 +3114,28 @@ typedef struct {
static PyTypeObject permutations_type;
/*[clinic input]
@classmethod
itertools.permutations.__new__
iterable: object
r as robj: object = None
Return successive r-length permutations of elements in the iterable.
permutations(range(3), 2) --> (0,1), (0,2), (1,0), (1,2), (2,0), (2,1)
[clinic start generated code]*/
static PyObject *
permutations_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_permutations_impl(PyTypeObject *type, PyObject *iterable,
PyObject *robj)
/*[clinic end generated code: output=296a72fa76d620ea input=57d0170a4ac0ec7a]*/
{
permutationsobject *po;
Py_ssize_t n;
Py_ssize_t r;
PyObject *robj = Py_None;
PyObject *pool = NULL;
PyObject *iterable = NULL;
Py_ssize_t *indices = NULL;
Py_ssize_t *cycles = NULL;
Py_ssize_t i;
static char *kwargs[] = {"iterable", "r", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:permutations", kwargs,
&iterable, &robj))
return NULL;
pool = PySequence_Tuple(iterable);
if (pool == NULL)
@ -3389,12 +3423,6 @@ static PyMethodDef permuations_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(permutations_doc,
"permutations(iterable[, r]) --> permutations object\n\
\n\
Return successive r-length permutations of elements in the iterable.\n\n\
permutations(range(3), 2) --> (0,1), (0,2), (1,0), (1,2), (2,0), (2,1)");
static PyTypeObject permutations_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.permutations", /* tp_name */
@ -3418,7 +3446,7 @@ static PyTypeObject permutations_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
permutations_doc, /* tp_doc */
itertools_permutations__doc__, /* tp_doc */
(traverseproc)permutations_traverse,/* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -3435,10 +3463,11 @@ static PyTypeObject permutations_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
permutations_new, /* tp_new */
itertools_permutations, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
/* accumulate object ********************************************************/
typedef struct {
@ -3450,18 +3479,22 @@ typedef struct {
static PyTypeObject accumulate_type;
/*[clinic input]
@classmethod
itertools.accumulate.__new__
iterable: object
func as binop: object = None
Return series of accumulated sums (or other binary function results).
[clinic start generated code]*/
static PyObject *
accumulate_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_accumulate_impl(PyTypeObject *type, PyObject *iterable,
PyObject *binop)
/*[clinic end generated code: output=514d0fb30ba14d55 input=6d9d16aaa1d3cbfc]*/
{
static char *kwargs[] = {"iterable", "func", NULL};
PyObject *iterable;
PyObject *it;
PyObject *binop = Py_None;
accumulateobject *lz;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:accumulate",
kwargs, &iterable, &binop))
return NULL;
/* Get iterator. */
it = PyObject_GetIter(iterable);
@ -3572,11 +3605,6 @@ static PyMethodDef accumulate_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(accumulate_doc,
"accumulate(iterable[, func]) --> accumulate object\n\
\n\
Return series of accumulated sums (or other binary function results).");
static PyTypeObject accumulate_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.accumulate", /* tp_name */
@ -3600,7 +3628,7 @@ static PyTypeObject accumulate_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
accumulate_doc, /* tp_doc */
itertools_accumulate__doc__, /* tp_doc */
(traverseproc)accumulate_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -3617,7 +3645,7 @@ static PyTypeObject accumulate_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
accumulate_new, /* tp_new */
itertools_accumulate, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -3639,16 +3667,23 @@ typedef struct {
static PyTypeObject compress_type;
/*[clinic input]
@classmethod
itertools.compress.__new__
data as seq1: object
selectors as seq2: object
Return data elements corresponding to true selector elements.
Forms a shorter iterator from selected data elements using the selectors to
choose the data elements.
[clinic start generated code]*/
static PyObject *
compress_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_compress_impl(PyTypeObject *type, PyObject *seq1, PyObject *seq2)
/*[clinic end generated code: output=7e67157212ed09e0 input=79596d7cd20c77e5]*/
{
PyObject *seq1, *seq2;
PyObject *data=NULL, *selectors=NULL;
compressobject *lz;
static char *kwargs[] = {"data", "selectors", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO:compress", kwargs, &seq1, &seq2))
return NULL;
data = PyObject_GetIter(seq1);
if (data == NULL)
@ -3737,13 +3772,6 @@ static PyMethodDef compress_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(compress_doc,
"compress(data, selectors) --> iterator over selected data\n\
\n\
Return data elements corresponding to true selector elements.\n\
Forms a shorter iterator from selected data elements using the\n\
selectors to choose the data elements.");
static PyTypeObject compress_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.compress", /* tp_name */
@ -3767,7 +3795,7 @@ static PyTypeObject compress_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
compress_doc, /* tp_doc */
itertools_compress__doc__, /* tp_doc */
(traverseproc)compress_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -3784,7 +3812,7 @@ static PyTypeObject compress_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
compress_new, /* tp_new */
itertools_compress, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -3799,20 +3827,24 @@ typedef struct {
static PyTypeObject filterfalse_type;
/*[clinic input]
@classmethod
itertools.filterfalse.__new__
function as func: object
iterable as seq: object
/
Return those items of iterable for which function(item) is false.
If function is None, return the items that are false.
[clinic start generated code]*/
static PyObject *
filterfalse_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_filterfalse_impl(PyTypeObject *type, PyObject *func, PyObject *seq)
/*[clinic end generated code: output=55f87eab9fc0484e input=2d684a2c66f99cde]*/
{
PyObject *func, *seq;
PyObject *it;
filterfalseobject *lz;
if (type == &filterfalse_type &&
!_PyArg_NoKeywords("filterfalse", kwds))
return NULL;
if (!PyArg_UnpackTuple(args, "filterfalse", 2, 2, &func, &seq))
return NULL;
/* Get iterator. */
it = PyObject_GetIter(seq);
if (it == NULL)
@ -3894,12 +3926,6 @@ static PyMethodDef filterfalse_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(filterfalse_doc,
"filterfalse(function or None, sequence) --> filterfalse object\n\
\n\
Return those items of sequence for which function(item) is false.\n\
If function is None, return the items that are false.");
static PyTypeObject filterfalse_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.filterfalse", /* tp_name */
@ -3923,7 +3949,7 @@ static PyTypeObject filterfalse_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
filterfalse_doc, /* tp_doc */
itertools_filterfalse__doc__, /* tp_doc */
(traverseproc)filterfalse_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -3940,7 +3966,7 @@ static PyTypeObject filterfalse_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
filterfalse_new, /* tp_new */
itertools_filterfalse, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -3973,20 +3999,30 @@ slow_mode: when cnt == PY_SSIZE_T_MAX, step is not int(1), or cnt is a float.
static PyTypeObject count_type;
/*[clinic input]
@classmethod
itertools.count.__new__
start as long_cnt: object(c_default="NULL") = 0
step as long_step: object(c_default="NULL") = 1
Return a count object whose .__next__() method returns consecutive values.
Equivalent to:
def count(firstval=0, step=1):
x = firstval
while 1:
yield x
x += step
[clinic start generated code]*/
static PyObject *
count_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
itertools_count_impl(PyTypeObject *type, PyObject *long_cnt,
PyObject *long_step)
/*[clinic end generated code: output=09a9250aebd00b1c input=d7a85eec18bfcd94]*/
{
countobject *lz;
int fast_mode;
Py_ssize_t cnt = 0;
PyObject *long_cnt = NULL;
PyObject *long_step = NULL;
long step;
static char *kwlist[] = {"start", "step", 0};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OO:count",
kwlist, &long_cnt, &long_step))
return NULL;
if ((long_cnt != NULL && !PyNumber_Check(long_cnt)) ||
(long_step != NULL && !PyNumber_Check(long_step))) {
@ -4139,17 +4175,6 @@ static PyMethodDef count_methods[] = {
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(count_doc,
"count(start=0, step=1) --> count object\n\
\n\
Return a count object whose .__next__() method returns consecutive values.\n\
Equivalent to:\n\n\
def count(firstval=0, step=1):\n\
x = firstval\n\
while 1:\n\
yield x\n\
x += step\n");
static PyTypeObject count_type = {
PyVarObject_HEAD_INIT(NULL, 0)
"itertools.count", /* tp_name */
@ -4173,7 +4198,7 @@ static PyTypeObject count_type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE, /* tp_flags */
count_doc, /* tp_doc */
itertools_count__doc__, /* tp_doc */
(traverseproc)count_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
@ -4190,7 +4215,7 @@ static PyTypeObject count_type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
count_new, /* tp_new */
itertools_count, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
@ -4349,6 +4374,7 @@ static PyTypeObject repeat_type = {
PyObject_GC_Del, /* tp_free */
};
/* ziplongest object *********************************************************/
typedef struct {
@ -4619,6 +4645,7 @@ static PyTypeObject ziplongest_type = {
PyObject_GC_Del, /* tp_free */
};
/* module level code ********************************************************/
PyDoc_STRVAR(module_doc,
@ -4653,7 +4680,7 @@ combinations_with_replacement(p, r)\n\
static PyMethodDef module_methods[] = {
{"tee", (PyCFunction)tee, METH_VARARGS, tee_doc},
ITERTOOLS_TEE_METHODDEF
{NULL, NULL} /* sentinel */
};