diff options
Diffstat (limited to 'Python/sysmodule.c')
| -rw-r--r-- | Python/sysmodule.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c index b74a440d4f..101a6e46e8 100644 --- a/Python/sysmodule.c +++ b/Python/sysmodule.c @@ -264,6 +264,32 @@ operating system filenames." #endif + +static PyObject * +sys_intern(PyObject *self, PyObject *args) +{ + PyObject *s; + if (!PyArg_ParseTuple(args, "S:intern", &s)) + return NULL; + if (!PyString_CheckExact(s)) { + PyErr_SetString(PyExc_TypeError, + "can't intern subclass of string"); + return NULL; + } + Py_INCREF(s); + PyString_InternInPlace(&s); + return s; +} + +PyDoc_STRVAR(intern_doc, +"intern(string) -> string\n\ +\n\ +``Intern'' the given string. This enters the string in the (global)\n\ +table of interned strings whose purpose is to speed up dictionary lookups.\n\ +Return the string itself or the previously interned string object with the\n\ +same value."); + + /* * Cached interned string objects used for calling the profile and * trace functions. Initialized by trace_init(). @@ -772,6 +798,7 @@ static PyMethodDef sys_methods[] = { {"getwindowsversion", (PyCFunction)sys_getwindowsversion, METH_NOARGS, getwindowsversion_doc}, #endif /* MS_WINDOWS */ + {"intern", sys_intern, METH_VARARGS, intern_doc}, #ifdef USE_MALLOPT {"mdebug", sys_mdebug, METH_VARARGS}, #endif |