Fix flat_option->flatten merge 😬

coolreader18 · coolreader18 · commit fa2d6175c5f8 · 2020-07-28T13:16:05.000-05:00
diff --git a/vm/src/stdlib/itertools.rs b/vm/src/stdlib/itertools.rs
@@ -558,7 +558,7 @@ mod decl {
 
             PyItertoolsGroupBy {
                 iterable: iter,
-                key_func: args.key.flat_option(),
+                key_func: args.key.flatten(),
                 state: PyMutex::new(GroupByState {
                     current_key: None,
                     current_value: None,
