1745 lines
43 KiB
C
1745 lines
43 KiB
C
/* Built-in functions */
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#include "Python.h"
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#include "node.h"
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#include "code.h"
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#include "eval.h"
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#include <ctype.h>
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#ifdef RISCOS
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#include "unixstuff.h"
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#endif
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/* The default encoding used by the platform file system APIs
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Can remain NULL for all platforms that don't have such a concept
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*/
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#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
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const char *Py_FileSystemDefaultEncoding = "mbcs";
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#elif defined(__APPLE__)
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const char *Py_FileSystemDefaultEncoding = "utf-8";
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#else
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const char *Py_FileSystemDefaultEncoding = NULL; /* use default */
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#endif
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static PyObject *
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builtin___build_class__(PyObject *self, PyObject *args, PyObject *kwds)
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{
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PyObject *func, *name, *bases, *mkw, *meta, *prep, *ns, *cell;
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PyObject *cls = NULL;
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Py_ssize_t nargs, nbases;
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assert(args != NULL);
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if (!PyTuple_Check(args)) {
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PyErr_SetString(PyExc_TypeError,
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"__build_class__: args is not a tuple");
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return NULL;
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}
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nargs = PyTuple_GET_SIZE(args);
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if (nargs < 2) {
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PyErr_SetString(PyExc_TypeError,
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"__build_class__: not enough arguments");
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return NULL;
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}
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func = PyTuple_GET_ITEM(args, 0); /* Better be callable */
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name = PyTuple_GET_ITEM(args, 1);
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if ((!PyString_Check(name) && !PyUnicode_Check(name))) {
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PyErr_SetString(PyExc_TypeError,
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"__build_class__: name is not a string");
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return NULL;
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}
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bases = PyTuple_GetSlice(args, 2, nargs);
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if (bases == NULL)
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return NULL;
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nbases = nargs - 2;
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if (kwds == NULL) {
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meta = NULL;
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mkw = NULL;
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}
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else {
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mkw = PyDict_Copy(kwds); /* Don't modify kwds passed in! */
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if (mkw == NULL) {
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Py_DECREF(bases);
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return NULL;
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}
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meta = PyDict_GetItemString(mkw, "metaclass");
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if (meta != NULL) {
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Py_INCREF(meta);
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if (PyDict_DelItemString(mkw, "metaclass") < 0) {
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Py_DECREF(meta);
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Py_DECREF(mkw);
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Py_DECREF(bases);
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return NULL;
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}
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}
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}
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if (meta == NULL) {
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if (PyTuple_GET_SIZE(bases) == 0)
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meta = (PyObject *) (&PyType_Type);
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else {
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PyObject *base0 = PyTuple_GET_ITEM(bases, 0);
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meta = (PyObject *) (base0->ob_type);
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}
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Py_INCREF(meta);
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}
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prep = PyObject_GetAttrString(meta, "__prepare__");
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if (prep == NULL) {
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PyErr_Clear();
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ns = PyDict_New();
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}
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else {
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PyObject *pargs = Py_BuildValue("OO", name, bases);
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if (pargs == NULL) {
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Py_DECREF(prep);
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Py_DECREF(meta);
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Py_XDECREF(mkw);
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Py_DECREF(bases);
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return NULL;
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}
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ns = PyEval_CallObjectWithKeywords(prep, pargs, mkw);
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Py_DECREF(pargs);
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Py_DECREF(prep);
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if (ns == NULL) {
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Py_DECREF(meta);
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Py_XDECREF(mkw);
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Py_DECREF(bases);
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return NULL;
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}
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}
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cell = PyObject_CallFunctionObjArgs(func, ns, NULL);
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if (cell != NULL) {
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PyObject *margs;
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margs = Py_BuildValue("OOO", name, bases, ns);
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if (margs != NULL) {
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cls = PyEval_CallObjectWithKeywords(meta, margs, mkw);
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Py_DECREF(margs);
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}
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if (cls != NULL && PyCell_Check(cell)) {
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Py_INCREF(cls);
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PyCell_SET(cell, cls);
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}
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Py_DECREF(cell);
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}
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Py_DECREF(ns);
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Py_DECREF(meta);
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Py_XDECREF(mkw);
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Py_DECREF(bases);
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return cls;
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}
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PyDoc_STRVAR(build_class_doc,
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"__build_class__(func, name, *bases, metaclass=None, **kwds) -> class\n\
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\n\
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Internal helper function used by the class statement.");
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static PyObject *
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builtin___import__(PyObject *self, PyObject *args, PyObject *kwds)
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{
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static char *kwlist[] = {"name", "globals", "locals", "fromlist",
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"level", 0};
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char *name;
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PyObject *globals = NULL;
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PyObject *locals = NULL;
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PyObject *fromlist = NULL;
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int level = -1;
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if (!PyArg_ParseTupleAndKeywords(args, kwds, "s|OOOi:__import__",
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kwlist, &name, &globals, &locals, &fromlist, &level))
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return NULL;
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return PyImport_ImportModuleLevel(name, globals, locals,
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fromlist, level);
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}
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PyDoc_STRVAR(import_doc,
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"__import__(name, globals={}, locals={}, fromlist=[], level=-1) -> module\n\
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\n\
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Import a module. The globals are only used to determine the context;\n\
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they are not modified. The locals are currently unused. The fromlist\n\
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should be a list of names to emulate ``from name import ...'', or an\n\
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empty list to emulate ``import name''.\n\
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When importing a module from a package, note that __import__('A.B', ...)\n\
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returns package A when fromlist is empty, but its submodule B when\n\
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fromlist is not empty. Level is used to determine whether to perform \n\
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absolute or relative imports. -1 is the original strategy of attempting\n\
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both absolute and relative imports, 0 is absolute, a positive number\n\
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is the number of parent directories to search relative to the current module.");
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static PyObject *
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builtin_abs(PyObject *self, PyObject *v)
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{
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return PyNumber_Absolute(v);
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}
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PyDoc_STRVAR(abs_doc,
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"abs(number) -> number\n\
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\n\
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Return the absolute value of the argument.");
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static PyObject *
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builtin_all(PyObject *self, PyObject *v)
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{
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PyObject *it, *item;
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it = PyObject_GetIter(v);
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if (it == NULL)
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return NULL;
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while ((item = PyIter_Next(it)) != NULL) {
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int cmp = PyObject_IsTrue(item);
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Py_DECREF(item);
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if (cmp < 0) {
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Py_DECREF(it);
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return NULL;
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}
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if (cmp == 0) {
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Py_DECREF(it);
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Py_RETURN_FALSE;
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}
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}
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Py_DECREF(it);
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if (PyErr_Occurred())
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return NULL;
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Py_RETURN_TRUE;
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}
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PyDoc_STRVAR(all_doc,
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"all(iterable) -> bool\n\
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\n\
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Return True if bool(x) is True for all values x in the iterable.");
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static PyObject *
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builtin_any(PyObject *self, PyObject *v)
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{
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PyObject *it, *item;
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it = PyObject_GetIter(v);
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if (it == NULL)
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return NULL;
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while ((item = PyIter_Next(it)) != NULL) {
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int cmp = PyObject_IsTrue(item);
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Py_DECREF(item);
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if (cmp < 0) {
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Py_DECREF(it);
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return NULL;
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}
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if (cmp == 1) {
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Py_DECREF(it);
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Py_RETURN_TRUE;
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}
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}
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Py_DECREF(it);
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if (PyErr_Occurred())
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return NULL;
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Py_RETURN_FALSE;
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}
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PyDoc_STRVAR(any_doc,
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"any(iterable) -> bool\n\
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\n\
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Return True if bool(x) is True for any x in the iterable.");
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static PyObject *
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builtin_bin(PyObject *self, PyObject *v)
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{
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return PyNumber_ToBase(v, 2);
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}
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PyDoc_STRVAR(bin_doc,
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"bin(number) -> string\n\
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\n\
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Return the binary representation of an integer or long integer.");
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static PyObject *
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builtin_filter(PyObject *self, PyObject *args)
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{
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PyObject *itertools, *ifilter, *result;
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itertools = PyImport_ImportModule("itertools");
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if (itertools == NULL)
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return NULL;
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ifilter = PyObject_GetAttrString(itertools, "ifilter");
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Py_DECREF(itertools);
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if (ifilter == NULL)
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return NULL;
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result = PyObject_Call(ifilter, args, NULL);
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Py_DECREF(ifilter);
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return result;
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}
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PyDoc_STRVAR(filter_doc,
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"filter(predicate, iterable) -> iterator\n\
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\n\
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Return an iterator yielding only those elements of the input iterable\n\
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for which the predicate (a Boolean function) returns true.\n\
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If the predicate is None, 'lambda x: bool(x)' is assumed.\n\
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(This is identical to itertools.ifilter().)");
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static PyObject *
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builtin_chr8(PyObject *self, PyObject *args)
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{
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long x;
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char s[1];
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if (!PyArg_ParseTuple(args, "l:chr8", &x))
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return NULL;
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if (x < 0 || x >= 256) {
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PyErr_SetString(PyExc_ValueError,
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"chr8() arg not in range(256)");
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return NULL;
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}
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s[0] = (char)x;
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return PyString_FromStringAndSize(s, 1);
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}
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PyDoc_STRVAR(chr8_doc,
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"chr8(i) -> 8-bit character\n\
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\n\
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Return a string of one character with ordinal i; 0 <= i < 256.");
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static PyObject *
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builtin_chr(PyObject *self, PyObject *args)
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{
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long x;
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if (!PyArg_ParseTuple(args, "l:chr", &x))
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return NULL;
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return PyUnicode_FromOrdinal(x);
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}
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PyDoc_VAR(chr_doc) = PyDoc_STR(
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"chr(i) -> Unicode character\n\
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\n\
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Return a Unicode string of one character with ordinal i; 0 <= i <= 0x10ffff."
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)
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#ifndef Py_UNICODE_WIDE
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PyDoc_STR(
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"\nIf 0x10000 <= i, a surrogate pair is returned."
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)
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#endif
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;
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static PyObject *
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builtin_cmp(PyObject *self, PyObject *args)
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{
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PyObject *a, *b;
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int c;
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if (!PyArg_UnpackTuple(args, "cmp", 2, 2, &a, &b))
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return NULL;
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if (PyObject_Cmp(a, b, &c) < 0)
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return NULL;
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return PyInt_FromLong((long)c);
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}
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PyDoc_STRVAR(cmp_doc,
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"cmp(x, y) -> integer\n\
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\n\
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Return negative if x<y, zero if x==y, positive if x>y.");
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static char *
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source_as_string(PyObject *cmd)
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{
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char *str;
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Py_ssize_t size;
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if (!PyObject_CheckReadBuffer(cmd) &&
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!PyUnicode_Check(cmd)) {
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PyErr_SetString(PyExc_TypeError,
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"eval()/exec() arg 1 must be a string, bytes or code object");
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return NULL;
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}
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if (PyUnicode_Check(cmd)) {
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cmd = _PyUnicode_AsDefaultEncodedString(cmd, NULL);
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if (cmd == NULL)
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return NULL;
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}
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if (PyObject_AsReadBuffer(cmd, (const void **)&str, &size) < 0) {
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return NULL;
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}
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if (strlen(str) != size) {
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PyErr_SetString(PyExc_TypeError,
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"source code string cannot contain null bytes");
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return NULL;
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}
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return str;
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}
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static PyObject *
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builtin_compile(PyObject *self, PyObject *args, PyObject *kwds)
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{
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char *str;
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char *filename;
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char *startstr;
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int start;
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int dont_inherit = 0;
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int supplied_flags = 0;
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PyCompilerFlags cf;
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PyObject *cmd;
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static char *kwlist[] = {"source", "filename", "mode", "flags",
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"dont_inherit", NULL};
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if (!PyArg_ParseTupleAndKeywords(args, kwds, "Oss|ii:compile",
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kwlist, &cmd, &filename, &startstr,
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&supplied_flags, &dont_inherit))
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return NULL;
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cf.cf_flags = supplied_flags | PyCF_SOURCE_IS_UTF8;
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str = source_as_string(cmd);
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if (str == NULL)
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return NULL;
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if (strcmp(startstr, "exec") == 0)
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start = Py_file_input;
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else if (strcmp(startstr, "eval") == 0)
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start = Py_eval_input;
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else if (strcmp(startstr, "single") == 0)
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start = Py_single_input;
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else {
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PyErr_SetString(PyExc_ValueError,
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"compile() arg 3 must be 'exec' or 'eval' or 'single'");
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return NULL;
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}
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|
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if (supplied_flags &
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~(PyCF_MASK | PyCF_MASK_OBSOLETE | PyCF_DONT_IMPLY_DEDENT | PyCF_ONLY_AST))
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{
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PyErr_SetString(PyExc_ValueError,
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"compile(): unrecognised flags");
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return NULL;
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}
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/* XXX Warn if (supplied_flags & PyCF_MASK_OBSOLETE) != 0? */
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if (!dont_inherit) {
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PyEval_MergeCompilerFlags(&cf);
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}
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return Py_CompileStringFlags(str, filename, start, &cf);
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}
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PyDoc_STRVAR(compile_doc,
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"compile(source, filename, mode[, flags[, dont_inherit]]) -> code object\n\
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\n\
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Compile the source string (a Python module, statement or expression)\n\
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into a code object that can be executed by exec() or eval().\n\
|
|
The filename will be used for run-time error messages.\n\
|
|
The mode must be 'exec' to compile a module, 'single' to compile a\n\
|
|
single (interactive) statement, or 'eval' to compile an expression.\n\
|
|
The flags argument, if present, controls which future statements influence\n\
|
|
the compilation of the code.\n\
|
|
The dont_inherit argument, if non-zero, stops the compilation inheriting\n\
|
|
the effects of any future statements in effect in the code calling\n\
|
|
compile; if absent or zero these statements do influence the compilation,\n\
|
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in addition to any features explicitly specified.");
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|
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static PyObject *
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builtin_dir(PyObject *self, PyObject *args)
|
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{
|
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PyObject *arg = NULL;
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|
|
if (!PyArg_UnpackTuple(args, "dir", 0, 1, &arg))
|
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return NULL;
|
|
return PyObject_Dir(arg);
|
|
}
|
|
|
|
PyDoc_STRVAR(dir_doc,
|
|
"dir([object]) -> list of strings\n"
|
|
"\n"
|
|
"If called without an argument, return the names in the current scope.\n"
|
|
"Else, return an alphabetized list of names comprising (some of) the attributes\n"
|
|
"of the given object, and of attributes reachable from it.\n"
|
|
"If the object supplies a method named __dir__, it will be used; otherwise\n"
|
|
"the default dir() logic is used and returns:\n"
|
|
" for a module object: the module's attributes.\n"
|
|
" for a class object: its attributes, and recursively the attributes\n"
|
|
" of its bases.\n"
|
|
" for any other object: its attributes, its class's attributes, and\n"
|
|
" recursively the attributes of its class's base classes.");
|
|
|
|
static PyObject *
|
|
builtin_divmod(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v, *w;
|
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|
|
if (!PyArg_UnpackTuple(args, "divmod", 2, 2, &v, &w))
|
|
return NULL;
|
|
return PyNumber_Divmod(v, w);
|
|
}
|
|
|
|
PyDoc_STRVAR(divmod_doc,
|
|
"divmod(x, y) -> (div, mod)\n\
|
|
\n\
|
|
Return the tuple ((x-x%y)/y, x%y). Invariant: div*y + mod == x.");
|
|
|
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|
|
static PyObject *
|
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builtin_eval(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *cmd, *result, *tmp = NULL;
|
|
PyObject *globals = Py_None, *locals = Py_None;
|
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char *str;
|
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PyCompilerFlags cf;
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|
|
if (!PyArg_UnpackTuple(args, "eval", 1, 3, &cmd, &globals, &locals))
|
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return NULL;
|
|
if (locals != Py_None && !PyMapping_Check(locals)) {
|
|
PyErr_SetString(PyExc_TypeError, "locals must be a mapping");
|
|
return NULL;
|
|
}
|
|
if (globals != Py_None && !PyDict_Check(globals)) {
|
|
PyErr_SetString(PyExc_TypeError, PyMapping_Check(globals) ?
|
|
"globals must be a real dict; try eval(expr, {}, mapping)"
|
|
: "globals must be a dict");
|
|
return NULL;
|
|
}
|
|
if (globals == Py_None) {
|
|
globals = PyEval_GetGlobals();
|
|
if (locals == Py_None)
|
|
locals = PyEval_GetLocals();
|
|
}
|
|
else if (locals == Py_None)
|
|
locals = globals;
|
|
|
|
if (globals == NULL || locals == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"eval must be given globals and locals "
|
|
"when called without a frame");
|
|
return NULL;
|
|
}
|
|
|
|
if (PyDict_GetItemString(globals, "__builtins__") == NULL) {
|
|
if (PyDict_SetItemString(globals, "__builtins__",
|
|
PyEval_GetBuiltins()) != 0)
|
|
return NULL;
|
|
}
|
|
|
|
if (PyCode_Check(cmd)) {
|
|
if (PyCode_GetNumFree((PyCodeObject *)cmd) > 0) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"code object passed to eval() may not contain free variables");
|
|
return NULL;
|
|
}
|
|
return PyEval_EvalCode((PyCodeObject *) cmd, globals, locals);
|
|
}
|
|
|
|
str = source_as_string(cmd);
|
|
if (str == NULL)
|
|
return NULL;
|
|
|
|
while (*str == ' ' || *str == '\t')
|
|
str++;
|
|
|
|
cf.cf_flags = PyCF_SOURCE_IS_UTF8;
|
|
(void)PyEval_MergeCompilerFlags(&cf);
|
|
result = PyRun_StringFlags(str, Py_eval_input, globals, locals, &cf);
|
|
Py_XDECREF(tmp);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(eval_doc,
|
|
"eval(source[, globals[, locals]]) -> value\n\
|
|
\n\
|
|
Evaluate the source in the context of globals and locals.\n\
|
|
The source may be a string representing a Python expression\n\
|
|
or a code object as returned by compile().\n\
|
|
The globals must be a dictionary and locals can be any mapping,\n\
|
|
defaulting to the current globals and locals.\n\
|
|
If only globals is given, locals defaults to it.\n");
|
|
|
|
static PyObject *
|
|
builtin_exec(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v;
|
|
PyObject *prog, *globals = Py_None, *locals = Py_None;
|
|
int plain = 0;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|OO:exec", &prog, &globals, &locals))
|
|
return NULL;
|
|
|
|
if (globals == Py_None) {
|
|
globals = PyEval_GetGlobals();
|
|
if (locals == Py_None) {
|
|
locals = PyEval_GetLocals();
|
|
plain = 1;
|
|
}
|
|
if (!globals || !locals) {
|
|
PyErr_SetString(PyExc_SystemError,
|
|
"globals and locals cannot be NULL");
|
|
return NULL;
|
|
}
|
|
}
|
|
else if (locals == Py_None)
|
|
locals = globals;
|
|
if (!PyString_Check(prog) &&
|
|
!PyUnicode_Check(prog) &&
|
|
!PyCode_Check(prog)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"exec() arg 1 must be a string, file, or code "
|
|
"object, not %.100s", prog->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
if (!PyDict_Check(globals)) {
|
|
PyErr_Format(PyExc_TypeError, "exec() arg 2 must be a dict, not %.100s",
|
|
globals->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
if (!PyMapping_Check(locals)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"arg 3 must be a mapping or None, not %.100s",
|
|
locals->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
if (PyDict_GetItemString(globals, "__builtins__") == NULL) {
|
|
if (PyDict_SetItemString(globals, "__builtins__",
|
|
PyEval_GetBuiltins()) != 0)
|
|
return NULL;
|
|
}
|
|
|
|
if (PyCode_Check(prog)) {
|
|
if (PyCode_GetNumFree((PyCodeObject *)prog) > 0) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"code object passed to exec() may not "
|
|
"contain free variables");
|
|
return NULL;
|
|
}
|
|
v = PyEval_EvalCode((PyCodeObject *) prog, globals, locals);
|
|
}
|
|
else {
|
|
char *str = source_as_string(prog);
|
|
PyCompilerFlags cf;
|
|
if (str == NULL)
|
|
return NULL;
|
|
cf.cf_flags = PyCF_SOURCE_IS_UTF8;
|
|
if (PyEval_MergeCompilerFlags(&cf))
|
|
v = PyRun_StringFlags(str, Py_file_input, globals,
|
|
locals, &cf);
|
|
else
|
|
v = PyRun_String(str, Py_file_input, globals, locals);
|
|
}
|
|
if (v == NULL)
|
|
return NULL;
|
|
Py_DECREF(v);
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
PyDoc_STRVAR(exec_doc,
|
|
"exec(object[, globals[, locals]])\n\
|
|
\n\
|
|
Read and execute code from a object, which can be a string, a code\n\
|
|
object or a file object.\n\
|
|
The globals and locals are dictionaries, defaulting to the current\n\
|
|
globals and locals. If only globals is given, locals defaults to it.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_getattr(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v, *result, *dflt = NULL, *release = NULL;
|
|
PyObject *name;
|
|
|
|
if (!PyArg_UnpackTuple(args, "getattr", 2, 3, &v, &name, &dflt))
|
|
return NULL;
|
|
|
|
if (PyString_Check(name)) {
|
|
release = PyString_AsDecodedObject(name, NULL, NULL);
|
|
if (!release)
|
|
return NULL;
|
|
name = release;
|
|
}
|
|
|
|
if (!PyUnicode_Check(name)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"getattr(): attribute name must be string");
|
|
Py_XDECREF(release);
|
|
return NULL;
|
|
}
|
|
result = PyObject_GetAttr(v, name);
|
|
if (result == NULL && dflt != NULL &&
|
|
PyErr_ExceptionMatches(PyExc_AttributeError))
|
|
{
|
|
PyErr_Clear();
|
|
Py_INCREF(dflt);
|
|
result = dflt;
|
|
}
|
|
Py_XDECREF(release);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(getattr_doc,
|
|
"getattr(object, name[, default]) -> value\n\
|
|
\n\
|
|
Get a named attribute from an object; getattr(x, 'y') is equivalent to x.y.\n\
|
|
When a default argument is given, it is returned when the attribute doesn't\n\
|
|
exist; without it, an exception is raised in that case.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_globals(PyObject *self)
|
|
{
|
|
PyObject *d;
|
|
|
|
d = PyEval_GetGlobals();
|
|
Py_XINCREF(d);
|
|
return d;
|
|
}
|
|
|
|
PyDoc_STRVAR(globals_doc,
|
|
"globals() -> dictionary\n\
|
|
\n\
|
|
Return the dictionary containing the current scope's global variables.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_hasattr(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v;
|
|
PyObject *name;
|
|
|
|
if (!PyArg_UnpackTuple(args, "hasattr", 2, 2, &v, &name))
|
|
return NULL;
|
|
if (!PyUnicode_Check(name)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"hasattr(): attribute name must be string");
|
|
return NULL;
|
|
}
|
|
v = PyObject_GetAttr(v, name);
|
|
if (v == NULL) {
|
|
PyErr_Clear();
|
|
Py_INCREF(Py_False);
|
|
return Py_False;
|
|
}
|
|
Py_DECREF(v);
|
|
Py_INCREF(Py_True);
|
|
return Py_True;
|
|
}
|
|
|
|
PyDoc_STRVAR(hasattr_doc,
|
|
"hasattr(object, name) -> bool\n\
|
|
\n\
|
|
Return whether the object has an attribute with the given name.\n\
|
|
(This is done by calling getattr(object, name) and catching exceptions.)");
|
|
|
|
|
|
static PyObject *
|
|
builtin_id(PyObject *self, PyObject *v)
|
|
{
|
|
return PyLong_FromVoidPtr(v);
|
|
}
|
|
|
|
PyDoc_STRVAR(id_doc,
|
|
"id(object) -> integer\n\
|
|
\n\
|
|
Return the identity of an object. This is guaranteed to be unique among\n\
|
|
simultaneously existing objects. (Hint: it's the object's memory address.)");
|
|
|
|
|
|
static PyObject *
|
|
builtin_map(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *itertools, *imap, *result;
|
|
itertools = PyImport_ImportModule("itertools");
|
|
if (itertools == NULL)
|
|
return NULL;
|
|
imap = PyObject_GetAttrString(itertools, "imap");
|
|
Py_DECREF(itertools);
|
|
if (imap == NULL)
|
|
return NULL;
|
|
result = PyObject_Call(imap, args, NULL);
|
|
Py_DECREF(imap);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(map_doc,
|
|
"map(function, iterable[, iterable, ...]) -> iterator\n\
|
|
\n\
|
|
Return an iterator yielding the results of applying the function to the\n\
|
|
items of the argument iterables(s). If more than one iterable is given,\n\
|
|
the function is called with an argument list consisting of the\n\
|
|
corresponding item of each iterable, until an iterable is exhausted.\n\
|
|
If the function is None, 'lambda *a: a' is assumed.\n\
|
|
(This is identical to itertools.imap().)");
|
|
|
|
|
|
static PyObject *
|
|
builtin_next(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *it, *res;
|
|
PyObject *def = NULL;
|
|
|
|
if (!PyArg_UnpackTuple(args, "next", 1, 2, &it, &def))
|
|
return NULL;
|
|
if (!PyIter_Check(it)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"%.200s object is not an iterator", it->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
|
|
res = (*it->ob_type->tp_iternext)(it);
|
|
if (res == NULL) {
|
|
if (def) {
|
|
if (PyErr_Occurred() &&
|
|
!PyErr_ExceptionMatches(PyExc_StopIteration))
|
|
return NULL;
|
|
PyErr_Clear();
|
|
Py_INCREF(def);
|
|
return def;
|
|
} else if (PyErr_Occurred()) {
|
|
return NULL;
|
|
} else {
|
|
PyErr_SetNone(PyExc_StopIteration);
|
|
return NULL;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
PyDoc_STRVAR(next_doc,
|
|
"next(iterator[, default])\n\
|
|
\n\
|
|
Return the next item from the iterator. If default is given and the iterator\n\
|
|
is exhausted, it is returned instead of raising StopIteration.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_setattr(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v;
|
|
PyObject *name;
|
|
PyObject *value;
|
|
|
|
if (!PyArg_UnpackTuple(args, "setattr", 3, 3, &v, &name, &value))
|
|
return NULL;
|
|
if (PyObject_SetAttr(v, name, value) != 0)
|
|
return NULL;
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
PyDoc_STRVAR(setattr_doc,
|
|
"setattr(object, name, value)\n\
|
|
\n\
|
|
Set a named attribute on an object; setattr(x, 'y', v) is equivalent to\n\
|
|
``x.y = v''.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_delattr(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v;
|
|
PyObject *name;
|
|
|
|
if (!PyArg_UnpackTuple(args, "delattr", 2, 2, &v, &name))
|
|
return NULL;
|
|
if (PyObject_SetAttr(v, name, (PyObject *)NULL) != 0)
|
|
return NULL;
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
PyDoc_STRVAR(delattr_doc,
|
|
"delattr(object, name)\n\
|
|
\n\
|
|
Delete a named attribute on an object; delattr(x, 'y') is equivalent to\n\
|
|
``del x.y''.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_hash(PyObject *self, PyObject *v)
|
|
{
|
|
long x;
|
|
|
|
x = PyObject_Hash(v);
|
|
if (x == -1)
|
|
return NULL;
|
|
return PyInt_FromLong(x);
|
|
}
|
|
|
|
PyDoc_STRVAR(hash_doc,
|
|
"hash(object) -> integer\n\
|
|
\n\
|
|
Return a hash value for the object. Two objects with the same value have\n\
|
|
the same hash value. The reverse is not necessarily true, but likely.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_hex(PyObject *self, PyObject *v)
|
|
{
|
|
return PyNumber_ToBase(v, 16);
|
|
}
|
|
|
|
PyDoc_STRVAR(hex_doc,
|
|
"hex(number) -> string\n\
|
|
\n\
|
|
Return the hexadecimal representation of an integer or long integer.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_iter(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v, *w = NULL;
|
|
|
|
if (!PyArg_UnpackTuple(args, "iter", 1, 2, &v, &w))
|
|
return NULL;
|
|
if (w == NULL)
|
|
return PyObject_GetIter(v);
|
|
if (!PyCallable_Check(v)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"iter(v, w): v must be callable");
|
|
return NULL;
|
|
}
|
|
return PyCallIter_New(v, w);
|
|
}
|
|
|
|
PyDoc_STRVAR(iter_doc,
|
|
"iter(collection) -> iterator\n\
|
|
iter(callable, sentinel) -> iterator\n\
|
|
\n\
|
|
Get an iterator from an object. In the first form, the argument must\n\
|
|
supply its own iterator, or be a sequence.\n\
|
|
In the second form, the callable is called until it returns the sentinel.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_len(PyObject *self, PyObject *v)
|
|
{
|
|
Py_ssize_t res;
|
|
|
|
res = PyObject_Size(v);
|
|
if (res < 0 && PyErr_Occurred())
|
|
return NULL;
|
|
return PyInt_FromSsize_t(res);
|
|
}
|
|
|
|
PyDoc_STRVAR(len_doc,
|
|
"len(object) -> integer\n\
|
|
\n\
|
|
Return the number of items of a sequence or mapping.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_locals(PyObject *self)
|
|
{
|
|
PyObject *d;
|
|
|
|
d = PyEval_GetLocals();
|
|
Py_XINCREF(d);
|
|
return d;
|
|
}
|
|
|
|
PyDoc_STRVAR(locals_doc,
|
|
"locals() -> dictionary\n\
|
|
\n\
|
|
Update and return a dictionary containing the current scope's local variables.");
|
|
|
|
|
|
static PyObject *
|
|
min_max(PyObject *args, PyObject *kwds, int op)
|
|
{
|
|
PyObject *v, *it, *item, *val, *maxitem, *maxval, *keyfunc=NULL;
|
|
const char *name = op == Py_LT ? "min" : "max";
|
|
|
|
if (PyTuple_Size(args) > 1)
|
|
v = args;
|
|
else if (!PyArg_UnpackTuple(args, (char *)name, 1, 1, &v))
|
|
return NULL;
|
|
|
|
if (kwds != NULL && PyDict_Check(kwds) && PyDict_Size(kwds)) {
|
|
keyfunc = PyDict_GetItemString(kwds, "key");
|
|
if (PyDict_Size(kwds)!=1 || keyfunc == NULL) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"%s() got an unexpected keyword argument", name);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
it = PyObject_GetIter(v);
|
|
if (it == NULL)
|
|
return NULL;
|
|
|
|
maxitem = NULL; /* the result */
|
|
maxval = NULL; /* the value associated with the result */
|
|
while (( item = PyIter_Next(it) )) {
|
|
/* get the value from the key function */
|
|
if (keyfunc != NULL) {
|
|
val = PyObject_CallFunctionObjArgs(keyfunc, item, NULL);
|
|
if (val == NULL)
|
|
goto Fail_it_item;
|
|
}
|
|
/* no key function; the value is the item */
|
|
else {
|
|
val = item;
|
|
Py_INCREF(val);
|
|
}
|
|
|
|
/* maximum value and item are unset; set them */
|
|
if (maxval == NULL) {
|
|
maxitem = item;
|
|
maxval = val;
|
|
}
|
|
/* maximum value and item are set; update them as necessary */
|
|
else {
|
|
int cmp = PyObject_RichCompareBool(val, maxval, op);
|
|
if (cmp < 0)
|
|
goto Fail_it_item_and_val;
|
|
else if (cmp > 0) {
|
|
Py_DECREF(maxval);
|
|
Py_DECREF(maxitem);
|
|
maxval = val;
|
|
maxitem = item;
|
|
}
|
|
else {
|
|
Py_DECREF(item);
|
|
Py_DECREF(val);
|
|
}
|
|
}
|
|
}
|
|
if (PyErr_Occurred())
|
|
goto Fail_it;
|
|
if (maxval == NULL) {
|
|
PyErr_Format(PyExc_ValueError,
|
|
"%s() arg is an empty sequence", name);
|
|
assert(maxitem == NULL);
|
|
}
|
|
else
|
|
Py_DECREF(maxval);
|
|
Py_DECREF(it);
|
|
return maxitem;
|
|
|
|
Fail_it_item_and_val:
|
|
Py_DECREF(val);
|
|
Fail_it_item:
|
|
Py_DECREF(item);
|
|
Fail_it:
|
|
Py_XDECREF(maxval);
|
|
Py_XDECREF(maxitem);
|
|
Py_DECREF(it);
|
|
return NULL;
|
|
}
|
|
|
|
static PyObject *
|
|
builtin_min(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
return min_max(args, kwds, Py_LT);
|
|
}
|
|
|
|
PyDoc_STRVAR(min_doc,
|
|
"min(iterable[, key=func]) -> value\n\
|
|
min(a, b, c, ...[, key=func]) -> value\n\
|
|
\n\
|
|
With a single iterable argument, return its smallest item.\n\
|
|
With two or more arguments, return the smallest argument.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_max(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
return min_max(args, kwds, Py_GT);
|
|
}
|
|
|
|
PyDoc_STRVAR(max_doc,
|
|
"max(iterable[, key=func]) -> value\n\
|
|
max(a, b, c, ...[, key=func]) -> value\n\
|
|
\n\
|
|
With a single iterable argument, return its largest item.\n\
|
|
With two or more arguments, return the largest argument.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_oct(PyObject *self, PyObject *v)
|
|
{
|
|
return PyNumber_ToBase(v, 8);
|
|
}
|
|
|
|
PyDoc_STRVAR(oct_doc,
|
|
"oct(number) -> string\n\
|
|
\n\
|
|
Return the octal representation of an integer or long integer.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_ord(PyObject *self, PyObject* obj)
|
|
{
|
|
long ord;
|
|
Py_ssize_t size;
|
|
|
|
if (PyString_Check(obj)) {
|
|
size = PyString_GET_SIZE(obj);
|
|
if (size == 1) {
|
|
ord = (long)((unsigned char)*PyString_AS_STRING(obj));
|
|
return PyInt_FromLong(ord);
|
|
}
|
|
}
|
|
else if (PyUnicode_Check(obj)) {
|
|
size = PyUnicode_GET_SIZE(obj);
|
|
if (size == 1) {
|
|
ord = (long)*PyUnicode_AS_UNICODE(obj);
|
|
return PyInt_FromLong(ord);
|
|
}
|
|
#ifndef Py_UNICODE_WIDE
|
|
if (size == 2) {
|
|
/* Decode a valid surrogate pair */
|
|
int c0 = PyUnicode_AS_UNICODE(obj)[0];
|
|
int c1 = PyUnicode_AS_UNICODE(obj)[1];
|
|
if (0xD800 <= c0 && c0 <= 0xDBFF &&
|
|
0xDC00 <= c1 && c1 <= 0xDFFF) {
|
|
ord = ((((c0 & 0x03FF) << 10) | (c1 & 0x03FF)) +
|
|
0x00010000);
|
|
return PyInt_FromLong(ord);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
else if (PyBytes_Check(obj)) {
|
|
/* XXX Hopefully this is temporary */
|
|
size = PyBytes_GET_SIZE(obj);
|
|
if (size == 1) {
|
|
ord = (long)((unsigned char)*PyBytes_AS_STRING(obj));
|
|
return PyInt_FromLong(ord);
|
|
}
|
|
}
|
|
else {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"ord() expected string of length 1, but " \
|
|
"%.200s found", obj->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
|
|
PyErr_Format(PyExc_TypeError,
|
|
"ord() expected a character, "
|
|
"but string of length %zd found",
|
|
size);
|
|
return NULL;
|
|
}
|
|
|
|
PyDoc_VAR(ord_doc) = PyDoc_STR(
|
|
"ord(c) -> integer\n\
|
|
\n\
|
|
Return the integer ordinal of a one-character string."
|
|
)
|
|
#ifndef Py_UNICODE_WIDE
|
|
PyDoc_STR(
|
|
"\nA valid surrogate pair is also accepted."
|
|
)
|
|
#endif
|
|
;
|
|
|
|
|
|
static PyObject *
|
|
builtin_pow(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v, *w, *z = Py_None;
|
|
|
|
if (!PyArg_UnpackTuple(args, "pow", 2, 3, &v, &w, &z))
|
|
return NULL;
|
|
return PyNumber_Power(v, w, z);
|
|
}
|
|
|
|
PyDoc_STRVAR(pow_doc,
|
|
"pow(x, y[, z]) -> number\n\
|
|
\n\
|
|
With two arguments, equivalent to x**y. With three arguments,\n\
|
|
equivalent to (x**y) % z, but may be more efficient (e.g. for longs).");
|
|
|
|
|
|
|
|
static PyObject *
|
|
builtin_print(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
static char *kwlist[] = {"sep", "end", "file", 0};
|
|
static PyObject *dummy_args;
|
|
PyObject *sep = NULL, *end = NULL, *file = NULL;
|
|
int i, err;
|
|
|
|
if (dummy_args == NULL) {
|
|
if (!(dummy_args = PyTuple_New(0)))
|
|
return NULL;
|
|
}
|
|
if (!PyArg_ParseTupleAndKeywords(dummy_args, kwds, "|OOO:print",
|
|
kwlist, &sep, &end, &file))
|
|
return NULL;
|
|
if (file == NULL || file == Py_None)
|
|
file = PySys_GetObject("stdout");
|
|
|
|
if (sep && sep != Py_None && !PyString_Check(sep) &&
|
|
!PyUnicode_Check(sep)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"sep must be None, str or unicode, not %.200s",
|
|
sep->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
if (end && end != Py_None && !PyString_Check(end) &&
|
|
!PyUnicode_Check(end)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"end must be None, str or unicode, not %.200s",
|
|
end->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < PyTuple_Size(args); i++) {
|
|
if (i > 0) {
|
|
if (sep == NULL || sep == Py_None)
|
|
err = PyFile_WriteString(" ", file);
|
|
else
|
|
err = PyFile_WriteObject(sep, file,
|
|
Py_PRINT_RAW);
|
|
if (err)
|
|
return NULL;
|
|
}
|
|
err = PyFile_WriteObject(PyTuple_GetItem(args, i), file,
|
|
Py_PRINT_RAW);
|
|
if (err)
|
|
return NULL;
|
|
}
|
|
|
|
if (end == NULL || end == Py_None)
|
|
err = PyFile_WriteString("\n", file);
|
|
else
|
|
err = PyFile_WriteObject(end, file, Py_PRINT_RAW);
|
|
if (err)
|
|
return NULL;
|
|
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
PyDoc_STRVAR(print_doc,
|
|
"print(value, ..., file=None, sep=' ', end='\\n')\n\
|
|
\n\
|
|
Prints the values to a stream, or to sys.stdout by default.\n\
|
|
Optional keyword arguments:\n\
|
|
file: a file-like object (stream); defaults to the current sys.stdout.\n\
|
|
sep: string inserted between values, default a space.\n\
|
|
end: string appended after the last value, default a newline.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_input(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *promptarg = NULL;
|
|
PyObject *fin = PySys_GetObject("stdin");
|
|
PyObject *fout = PySys_GetObject("stdout");
|
|
PyObject *ferr = PySys_GetObject("stderr");
|
|
PyObject *tmp;
|
|
long fd;
|
|
int tty;
|
|
|
|
/* Parse arguments */
|
|
if (!PyArg_UnpackTuple(args, "input", 0, 1, &promptarg))
|
|
return NULL;
|
|
|
|
/* Check that stdin/out/err are intact */
|
|
if (fin == NULL) {
|
|
PyErr_SetString(PyExc_RuntimeError,
|
|
"input(): lost sys.stdin");
|
|
return NULL;
|
|
}
|
|
if (fout == NULL) {
|
|
PyErr_SetString(PyExc_RuntimeError,
|
|
"input(): lost sys.stdout");
|
|
return NULL;
|
|
}
|
|
if (ferr == NULL) {
|
|
PyErr_SetString(PyExc_RuntimeError,
|
|
"input(): lost sys.stderr");
|
|
return NULL;
|
|
}
|
|
|
|
/* First of all, flush stderr */
|
|
tmp = PyObject_CallMethod(ferr, "flush", "");
|
|
if (tmp == NULL)
|
|
PyErr_Clear();
|
|
else
|
|
Py_DECREF(tmp);
|
|
|
|
/* We should only use (GNU) readline if Python's sys.stdin and
|
|
sys.stdout are the same as C's stdin and stdout, because we
|
|
need to pass it those. */
|
|
tmp = PyObject_CallMethod(fin, "fileno", "");
|
|
if (tmp == NULL) {
|
|
PyErr_Clear();
|
|
tty = 0;
|
|
}
|
|
else {
|
|
fd = PyInt_AsLong(tmp);
|
|
Py_DECREF(tmp);
|
|
if (fd < 0 && PyErr_Occurred())
|
|
return NULL;
|
|
tty = fd == fileno(stdin) && isatty(fd);
|
|
}
|
|
if (tty) {
|
|
tmp = PyObject_CallMethod(fout, "fileno", "");
|
|
if (tmp == NULL)
|
|
PyErr_Clear();
|
|
else {
|
|
fd = PyInt_AsLong(tmp);
|
|
Py_DECREF(tmp);
|
|
if (fd < 0 && PyErr_Occurred())
|
|
return NULL;
|
|
tty = fd == fileno(stdout) && isatty(fd);
|
|
}
|
|
}
|
|
|
|
/* If we're interactive, use (GNU) readline */
|
|
if (tty) {
|
|
PyObject *po;
|
|
char *prompt;
|
|
char *s;
|
|
PyObject *result;
|
|
tmp = PyObject_CallMethod(fout, "flush", "");
|
|
if (tmp == NULL)
|
|
PyErr_Clear();
|
|
else
|
|
Py_DECREF(tmp);
|
|
if (promptarg != NULL) {
|
|
po = PyObject_Str(promptarg);
|
|
if (po == NULL)
|
|
return NULL;
|
|
prompt = PyString_AsString(po);
|
|
if (prompt == NULL) {
|
|
Py_DECREF(po);
|
|
return NULL;
|
|
}
|
|
}
|
|
else {
|
|
po = NULL;
|
|
prompt = "";
|
|
}
|
|
s = PyOS_Readline(stdin, stdout, prompt);
|
|
Py_XDECREF(po);
|
|
if (s == NULL) {
|
|
if (!PyErr_Occurred())
|
|
PyErr_SetNone(PyExc_KeyboardInterrupt);
|
|
return NULL;
|
|
}
|
|
if (*s == '\0') {
|
|
PyErr_SetNone(PyExc_EOFError);
|
|
result = NULL;
|
|
}
|
|
else { /* strip trailing '\n' */
|
|
size_t len = strlen(s);
|
|
if (len > PY_SSIZE_T_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"input: input too long");
|
|
result = NULL;
|
|
}
|
|
else {
|
|
result = PyString_FromStringAndSize(s, len-1);
|
|
}
|
|
}
|
|
PyMem_FREE(s);
|
|
return result;
|
|
}
|
|
|
|
/* Fallback if we're not interactive */
|
|
if (promptarg != NULL) {
|
|
if (PyFile_WriteObject(promptarg, fout, Py_PRINT_RAW) != 0)
|
|
return NULL;
|
|
}
|
|
tmp = PyObject_CallMethod(fout, "flush", "");
|
|
if (tmp == NULL)
|
|
PyErr_Clear();
|
|
else
|
|
Py_DECREF(tmp);
|
|
return PyFile_GetLine(fin, -1);
|
|
}
|
|
|
|
PyDoc_STRVAR(input_doc,
|
|
"input([prompt]) -> string\n\
|
|
\n\
|
|
Read a string from standard input. The trailing newline is stripped.\n\
|
|
If the user hits EOF (Unix: Ctl-D, Windows: Ctl-Z+Return), raise EOFError.\n\
|
|
On Unix, GNU readline is used if enabled. The prompt string, if given,\n\
|
|
is printed without a trailing newline before reading.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_repr(PyObject *self, PyObject *v)
|
|
{
|
|
return PyObject_Repr(v);
|
|
}
|
|
|
|
PyDoc_STRVAR(repr_doc,
|
|
"repr(object) -> string\n\
|
|
\n\
|
|
Return the canonical string representation of the object.\n\
|
|
For most object types, eval(repr(object)) == object.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_round(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
double number;
|
|
double f;
|
|
int ndigits = 0;
|
|
int i;
|
|
static char *kwlist[] = {"number", "ndigits", 0};
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwds, "d|i:round",
|
|
kwlist, &number, &ndigits))
|
|
return NULL;
|
|
f = 1.0;
|
|
i = abs(ndigits);
|
|
while (--i >= 0)
|
|
f = f*10.0;
|
|
if (ndigits < 0)
|
|
number /= f;
|
|
else
|
|
number *= f;
|
|
if (number >= 0.0)
|
|
number = floor(number + 0.5);
|
|
else
|
|
number = ceil(number - 0.5);
|
|
if (ndigits < 0)
|
|
number *= f;
|
|
else
|
|
number /= f;
|
|
return PyFloat_FromDouble(number);
|
|
}
|
|
|
|
PyDoc_STRVAR(round_doc,
|
|
"round(number[, ndigits]) -> floating point number\n\
|
|
\n\
|
|
Round a number to a given precision in decimal digits (default 0 digits).\n\
|
|
This always returns a floating point number. Precision may be negative.");
|
|
|
|
static PyObject *
|
|
builtin_sorted(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
PyObject *newlist, *v, *seq, *compare=NULL, *keyfunc=NULL, *newargs;
|
|
PyObject *callable;
|
|
static char *kwlist[] = {"iterable", "cmp", "key", "reverse", 0};
|
|
int reverse;
|
|
|
|
/* args 1-4 should match listsort in Objects/listobject.c */
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|OOi:sorted",
|
|
kwlist, &seq, &compare, &keyfunc, &reverse))
|
|
return NULL;
|
|
|
|
newlist = PySequence_List(seq);
|
|
if (newlist == NULL)
|
|
return NULL;
|
|
|
|
callable = PyObject_GetAttrString(newlist, "sort");
|
|
if (callable == NULL) {
|
|
Py_DECREF(newlist);
|
|
return NULL;
|
|
}
|
|
|
|
newargs = PyTuple_GetSlice(args, 1, 4);
|
|
if (newargs == NULL) {
|
|
Py_DECREF(newlist);
|
|
Py_DECREF(callable);
|
|
return NULL;
|
|
}
|
|
|
|
v = PyObject_Call(callable, newargs, kwds);
|
|
Py_DECREF(newargs);
|
|
Py_DECREF(callable);
|
|
if (v == NULL) {
|
|
Py_DECREF(newlist);
|
|
return NULL;
|
|
}
|
|
Py_DECREF(v);
|
|
return newlist;
|
|
}
|
|
|
|
PyDoc_STRVAR(sorted_doc,
|
|
"sorted(iterable, cmp=None, key=None, reverse=False) --> new sorted list");
|
|
|
|
static PyObject *
|
|
builtin_vars(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v = NULL;
|
|
PyObject *d;
|
|
|
|
if (!PyArg_UnpackTuple(args, "vars", 0, 1, &v))
|
|
return NULL;
|
|
if (v == NULL) {
|
|
d = PyEval_GetLocals();
|
|
if (d == NULL) {
|
|
if (!PyErr_Occurred())
|
|
PyErr_SetString(PyExc_SystemError,
|
|
"vars(): no locals!?");
|
|
}
|
|
else
|
|
Py_INCREF(d);
|
|
}
|
|
else {
|
|
d = PyObject_GetAttrString(v, "__dict__");
|
|
if (d == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"vars() argument must have __dict__ attribute");
|
|
return NULL;
|
|
}
|
|
}
|
|
return d;
|
|
}
|
|
|
|
PyDoc_STRVAR(vars_doc,
|
|
"vars([object]) -> dictionary\n\
|
|
\n\
|
|
Without arguments, equivalent to locals().\n\
|
|
With an argument, equivalent to object.__dict__.");
|
|
|
|
|
|
static PyObject*
|
|
builtin_sum(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *seq;
|
|
PyObject *result = NULL;
|
|
PyObject *temp, *item, *iter;
|
|
|
|
if (!PyArg_UnpackTuple(args, "sum", 1, 2, &seq, &result))
|
|
return NULL;
|
|
|
|
iter = PyObject_GetIter(seq);
|
|
if (iter == NULL)
|
|
return NULL;
|
|
|
|
if (result == NULL) {
|
|
result = PyInt_FromLong(0);
|
|
if (result == NULL) {
|
|
Py_DECREF(iter);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
/* reject string values for 'start' parameter */
|
|
if (PyObject_TypeCheck(result, &PyBaseString_Type)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"sum() can't sum strings [use ''.join(seq) instead]");
|
|
Py_DECREF(iter);
|
|
return NULL;
|
|
}
|
|
Py_INCREF(result);
|
|
}
|
|
|
|
for(;;) {
|
|
item = PyIter_Next(iter);
|
|
if (item == NULL) {
|
|
/* error, or end-of-sequence */
|
|
if (PyErr_Occurred()) {
|
|
Py_DECREF(result);
|
|
result = NULL;
|
|
}
|
|
break;
|
|
}
|
|
temp = PyNumber_Add(result, item);
|
|
Py_DECREF(result);
|
|
Py_DECREF(item);
|
|
result = temp;
|
|
if (result == NULL)
|
|
break;
|
|
}
|
|
Py_DECREF(iter);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(sum_doc,
|
|
"sum(sequence[, start]) -> value\n\
|
|
\n\
|
|
Returns the sum of a sequence of numbers (NOT strings) plus the value\n\
|
|
of parameter 'start' (which defaults to 0). When the sequence is\n\
|
|
empty, returns start.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_isinstance(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *inst;
|
|
PyObject *cls;
|
|
int retval;
|
|
|
|
if (!PyArg_UnpackTuple(args, "isinstance", 2, 2, &inst, &cls))
|
|
return NULL;
|
|
|
|
retval = PyObject_IsInstance(inst, cls);
|
|
if (retval < 0)
|
|
return NULL;
|
|
return PyBool_FromLong(retval);
|
|
}
|
|
|
|
PyDoc_STRVAR(isinstance_doc,
|
|
"isinstance(object, class-or-type-or-tuple) -> bool\n\
|
|
\n\
|
|
Return whether an object is an instance of a class or of a subclass thereof.\n\
|
|
With a type as second argument, return whether that is the object's type.\n\
|
|
The form using a tuple, isinstance(x, (A, B, ...)), is a shortcut for\n\
|
|
isinstance(x, A) or isinstance(x, B) or ... (etc.).");
|
|
|
|
|
|
static PyObject *
|
|
builtin_issubclass(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *derived;
|
|
PyObject *cls;
|
|
int retval;
|
|
|
|
if (!PyArg_UnpackTuple(args, "issubclass", 2, 2, &derived, &cls))
|
|
return NULL;
|
|
|
|
retval = PyObject_IsSubclass(derived, cls);
|
|
if (retval < 0)
|
|
return NULL;
|
|
return PyBool_FromLong(retval);
|
|
}
|
|
|
|
PyDoc_STRVAR(issubclass_doc,
|
|
"issubclass(C, B) -> bool\n\
|
|
\n\
|
|
Return whether class C is a subclass (i.e., a derived class) of class B.\n\
|
|
When using a tuple as the second argument issubclass(X, (A, B, ...)),\n\
|
|
is a shortcut for issubclass(X, A) or issubclass(X, B) or ... (etc.).");
|
|
|
|
|
|
static PyObject*
|
|
builtin_zip(PyObject *self, PyObject *args)
|
|
{
|
|
/* args must be a tuple */
|
|
assert(PyTuple_Check(args));
|
|
|
|
return _PyZip_CreateIter(args);
|
|
}
|
|
|
|
|
|
PyDoc_STRVAR(zip_doc,
|
|
"zip(it1 [, it2 [...]]) -> iter([(it1[0], it2[0] ...), ...])\n\
|
|
\n\
|
|
Return an iterator yielding tuples, where each tuple contains the\n\
|
|
corresponding element from each of the argument iterables.\n\
|
|
The returned iterator ends when the shortest argument iterable is exhausted.\n\
|
|
(This is identical to itertools.izip().)");
|
|
|
|
|
|
static PyMethodDef builtin_methods[] = {
|
|
{"__build_class__", (PyCFunction)builtin___build_class__,
|
|
METH_VARARGS | METH_KEYWORDS, build_class_doc},
|
|
{"__import__", (PyCFunction)builtin___import__, METH_VARARGS | METH_KEYWORDS, import_doc},
|
|
{"abs", builtin_abs, METH_O, abs_doc},
|
|
{"all", builtin_all, METH_O, all_doc},
|
|
{"any", builtin_any, METH_O, any_doc},
|
|
{"bin", builtin_bin, METH_O, bin_doc},
|
|
{"chr", builtin_chr, METH_VARARGS, chr_doc},
|
|
{"chr8", builtin_chr8, METH_VARARGS, chr8_doc},
|
|
{"cmp", builtin_cmp, METH_VARARGS, cmp_doc},
|
|
{"compile", (PyCFunction)builtin_compile, METH_VARARGS | METH_KEYWORDS, compile_doc},
|
|
{"delattr", builtin_delattr, METH_VARARGS, delattr_doc},
|
|
{"dir", builtin_dir, METH_VARARGS, dir_doc},
|
|
{"divmod", builtin_divmod, METH_VARARGS, divmod_doc},
|
|
{"eval", builtin_eval, METH_VARARGS, eval_doc},
|
|
{"exec", builtin_exec, METH_VARARGS, exec_doc},
|
|
{"filter", builtin_filter, METH_VARARGS, filter_doc},
|
|
{"getattr", builtin_getattr, METH_VARARGS, getattr_doc},
|
|
{"globals", (PyCFunction)builtin_globals, METH_NOARGS, globals_doc},
|
|
{"hasattr", builtin_hasattr, METH_VARARGS, hasattr_doc},
|
|
{"hash", builtin_hash, METH_O, hash_doc},
|
|
{"hex", builtin_hex, METH_O, hex_doc},
|
|
{"id", builtin_id, METH_O, id_doc},
|
|
{"input", builtin_input, METH_VARARGS, input_doc},
|
|
{"isinstance", builtin_isinstance, METH_VARARGS, isinstance_doc},
|
|
{"issubclass", builtin_issubclass, METH_VARARGS, issubclass_doc},
|
|
{"iter", builtin_iter, METH_VARARGS, iter_doc},
|
|
{"len", builtin_len, METH_O, len_doc},
|
|
{"locals", (PyCFunction)builtin_locals, METH_NOARGS, locals_doc},
|
|
{"map", builtin_map, METH_VARARGS, map_doc},
|
|
{"max", (PyCFunction)builtin_max, METH_VARARGS | METH_KEYWORDS, max_doc},
|
|
{"min", (PyCFunction)builtin_min, METH_VARARGS | METH_KEYWORDS, min_doc},
|
|
{"next", (PyCFunction)builtin_next, METH_VARARGS, next_doc},
|
|
{"oct", builtin_oct, METH_O, oct_doc},
|
|
{"ord", builtin_ord, METH_O, ord_doc},
|
|
{"pow", builtin_pow, METH_VARARGS, pow_doc},
|
|
{"print", (PyCFunction)builtin_print, METH_VARARGS | METH_KEYWORDS, print_doc},
|
|
{"repr", builtin_repr, METH_O, repr_doc},
|
|
{"round", (PyCFunction)builtin_round, METH_VARARGS | METH_KEYWORDS, round_doc},
|
|
{"setattr", builtin_setattr, METH_VARARGS, setattr_doc},
|
|
{"sorted", (PyCFunction)builtin_sorted, METH_VARARGS | METH_KEYWORDS, sorted_doc},
|
|
{"sum", builtin_sum, METH_VARARGS, sum_doc},
|
|
{"vars", builtin_vars, METH_VARARGS, vars_doc},
|
|
{"zip", builtin_zip, METH_VARARGS, zip_doc},
|
|
{NULL, NULL},
|
|
};
|
|
|
|
PyDoc_STRVAR(builtin_doc,
|
|
"Built-in functions, exceptions, and other objects.\n\
|
|
\n\
|
|
Noteworthy: None is the `nil' object; Ellipsis represents `...' in slices.");
|
|
|
|
PyObject *
|
|
_PyBuiltin_Init(void)
|
|
{
|
|
PyObject *mod, *dict, *debug;
|
|
mod = Py_InitModule4("__builtin__", builtin_methods,
|
|
builtin_doc, (PyObject *)NULL,
|
|
PYTHON_API_VERSION);
|
|
if (mod == NULL)
|
|
return NULL;
|
|
dict = PyModule_GetDict(mod);
|
|
|
|
#ifdef Py_TRACE_REFS
|
|
/* __builtin__ exposes a number of statically allocated objects
|
|
* that, before this code was added in 2.3, never showed up in
|
|
* the list of "all objects" maintained by Py_TRACE_REFS. As a
|
|
* result, programs leaking references to None and False (etc)
|
|
* couldn't be diagnosed by examining sys.getobjects(0).
|
|
*/
|
|
#define ADD_TO_ALL(OBJECT) _Py_AddToAllObjects((PyObject *)(OBJECT), 0)
|
|
#else
|
|
#define ADD_TO_ALL(OBJECT) (void)0
|
|
#endif
|
|
|
|
#define SETBUILTIN(NAME, OBJECT) \
|
|
if (PyDict_SetItemString(dict, NAME, (PyObject *)OBJECT) < 0) \
|
|
return NULL; \
|
|
ADD_TO_ALL(OBJECT)
|
|
|
|
SETBUILTIN("None", Py_None);
|
|
SETBUILTIN("Ellipsis", Py_Ellipsis);
|
|
SETBUILTIN("NotImplemented", Py_NotImplemented);
|
|
SETBUILTIN("False", Py_False);
|
|
SETBUILTIN("True", Py_True);
|
|
SETBUILTIN("basestring", &PyBaseString_Type);
|
|
SETBUILTIN("bool", &PyBool_Type);
|
|
SETBUILTIN("buffer", &PyBuffer_Type);
|
|
SETBUILTIN("bytes", &PyBytes_Type);
|
|
SETBUILTIN("classmethod", &PyClassMethod_Type);
|
|
#ifndef WITHOUT_COMPLEX
|
|
SETBUILTIN("complex", &PyComplex_Type);
|
|
#endif
|
|
SETBUILTIN("dict", &PyDict_Type);
|
|
SETBUILTIN("enumerate", &PyEnum_Type);
|
|
SETBUILTIN("float", &PyFloat_Type);
|
|
SETBUILTIN("frozenset", &PyFrozenSet_Type);
|
|
SETBUILTIN("property", &PyProperty_Type);
|
|
SETBUILTIN("int", &PyLong_Type);
|
|
SETBUILTIN("list", &PyList_Type);
|
|
SETBUILTIN("object", &PyBaseObject_Type);
|
|
SETBUILTIN("range", &PyRange_Type);
|
|
SETBUILTIN("reversed", &PyReversed_Type);
|
|
SETBUILTIN("set", &PySet_Type);
|
|
SETBUILTIN("slice", &PySlice_Type);
|
|
SETBUILTIN("staticmethod", &PyStaticMethod_Type);
|
|
SETBUILTIN("str", &PyUnicode_Type);
|
|
SETBUILTIN("str8", &PyString_Type);
|
|
SETBUILTIN("super", &PySuper_Type);
|
|
SETBUILTIN("tuple", &PyTuple_Type);
|
|
SETBUILTIN("type", &PyType_Type);
|
|
debug = PyBool_FromLong(Py_OptimizeFlag == 0);
|
|
if (PyDict_SetItemString(dict, "__debug__", debug) < 0) {
|
|
Py_XDECREF(debug);
|
|
return NULL;
|
|
}
|
|
Py_XDECREF(debug);
|
|
|
|
return mod;
|
|
#undef ADD_TO_ALL
|
|
#undef SETBUILTIN
|
|
}
|