Staging
v0.8.1
v0.8.1
https://github.com/python/cpython
Tip revision: 74f4bd53e03ded8408bcc2de67cf0f5a4ac5b1a1 authored by Barry Warsaw on 23 February 2012, 15:59:38 UTC
Bump some more copyright years (as per PEP 101), since this is the first
Bump some more copyright years (as per PEP 101), since this is the first
Tip revision: 74f4bd5
importdl.c
/* Support for dynamic loading of extension modules */
#include "Python.h"
/* ./configure sets HAVE_DYNAMIC_LOADING if dynamic loading of modules is
supported on this platform. configure will then compile and link in one
of the dynload_*.c files, as appropriate. We will call a function in
those modules to get a function pointer to the module's init function.
*/
#ifdef HAVE_DYNAMIC_LOADING
#include "importdl.h"
extern dl_funcptr _PyImport_GetDynLoadFunc(const char *name,
const char *shortname,
const char *pathname, FILE *fp);
PyObject *
_PyImport_LoadDynamicModule(char *name, char *pathname, FILE *fp)
{
PyObject *m;
char *lastdot, *shortname, *packagecontext, *oldcontext;
dl_funcptr p;
if ((m = _PyImport_FindExtension(name, pathname)) != NULL) {
Py_INCREF(m);
return m;
}
lastdot = strrchr(name, '.');
if (lastdot == NULL) {
packagecontext = NULL;
shortname = name;
}
else {
packagecontext = name;
shortname = lastdot+1;
}
p = _PyImport_GetDynLoadFunc(name, shortname, pathname, fp);
if (PyErr_Occurred())
return NULL;
if (p == NULL) {
PyErr_Format(PyExc_ImportError,
"dynamic module does not define init function (init%.200s)",
shortname);
return NULL;
}
oldcontext = _Py_PackageContext;
_Py_PackageContext = packagecontext;
(*p)();
_Py_PackageContext = oldcontext;
if (PyErr_Occurred())
return NULL;
m = PyDict_GetItemString(PyImport_GetModuleDict(), name);
if (m == NULL) {
PyErr_SetString(PyExc_SystemError,
"dynamic module not initialized properly");
return NULL;
}
/* Remember the filename as the __file__ attribute */
if (PyModule_AddStringConstant(m, "__file__", pathname) < 0)
PyErr_Clear(); /* Not important enough to report */
if (_PyImport_FixupExtension(name, pathname) == NULL)
return NULL;
if (Py_VerboseFlag)
PySys_WriteStderr(
"import %s # dynamically loaded from %s\n",
name, pathname);
Py_INCREF(m);
return m;
}
#endif /* HAVE_DYNAMIC_LOADING */