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-rw-r--r--Modules/_ctypes/callproc.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index 0a305ed..d452785 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -1383,8 +1383,11 @@ static PyObject *py_dl_open(PyObject *self, PyObject *args)
mode |= RTLD_NOW;
handle = ctypes_dlopen(name, mode);
if (!handle) {
+ char *errmsg = ctypes_dlerror();
+ if (!errmsg)
+ errmsg = "dlopen() error";
PyErr_SetString(PyExc_OSError,
- ctypes_dlerror());
+ errmsg);
return NULL;
}
return PyLong_FromVoidPtr(handle);