PyAPI: support retrieving the exception when running a string

- Optionally get the error as a single line.
- Support access the error as an allocated string.
- PyC_ExceptionBuffer_Simple was always printing to the `stdout` while
  PyC_ExceptionBuffer didn't, now either print to the output.

Without this, callers are unable to do anything with the error string.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/editors/interface/interface_context_menu.c b/source/blender/editors/interface/interface_context_menu.c
index c594b61acd3..b142e383df0 100644
--- a/source/blender/editors/interface/interface_context_menu.c
+++ b/source/blender/editors/interface/interface_context_menu.c
@@ -399,7 +399,7 @@ static void ui_but_user_menu_add(bContext *C, uiBut *but, bUserMenu *um)
                    "'%s').label",
                    idname);
           char *expr_result = NULL;
-          if (BPY_run_string_as_string(C, expr_imports, expr, __func__, &expr_result)) {
+          if (BPY_run_string_as_string(C, expr_imports, expr, NULL, &expr_result)) {
             STRNCPY(drawstr, expr_result);
             MEM_freeN(expr_result);
           }