1 files changed, 20 insertions, 0 deletions
diff --git a/Modules/_codecsmodule.c b/Modules/_codecsmodule.c
index 2e8cb97fe7..08a3d4ab02 100644
--- a/Modules/_codecsmodule.c
+++ b/Modules/_codecsmodule.c
@@ -160,6 +160,25 @@ _codecs_decode_impl(PyObject *module, PyObject *obj, const char *encoding,
 
 /* --- Helpers ------------------------------------------------------------ */
 
+/*[clinic input]
+_codecs._forget_codec
+
+    encoding: str
+    /
+
+Purge the named codec from the internal codec lookup cache
+[clinic start generated code]*/
+
+static PyObject *
+_codecs__forget_codec_impl(PyObject *module, const char *encoding)
+/*[clinic end generated code: output=0bde9f0a5b084aa2 input=18d5d92d0e386c38]*/
+{
+    if (_PyCodec_Forget(encoding) < 0) {
+        return NULL;
+    };
+    Py_RETURN_NONE;
+}
+
 static
 PyObject *codec_tuple(PyObject *decoded,
                       Py_ssize_t len)
@@ -1038,6 +1057,7 @@ static PyMethodDef _codecs_functions[] = {
     _CODECS_CODE_PAGE_DECODE_METHODDEF
     _CODECS_REGISTER_ERROR_METHODDEF
     _CODECS_LOOKUP_ERROR_METHODDEF
+    _CODECS__FORGET_CODEC_METHODDEF
     {NULL, NULL}                /* sentinel */
 };