maybe finish it!

Signed-off-by: cobalt <[email protected]>

src/black/linegen.py

@@ -1627,17 +1627,20 @@ def maybe_make_parens_invisible_in_atom(
         or is_empty_tuple(node)
         or is_one_tuple(node)
         or (is_yield(node) and parent.type != syms.expr_stmt)
-        or (
-            # This condition tries to prevent removing non-optional brackets
-            # around a tuple, however, can be a bit overzealous so we provide
-            # and option to skip this check for `for` and `with` statements.
-            not remove_brackets_around_comma
-            and max_delimiter_priority_in_atom(node) >= COMMA_PRIORITY
-        )
         or is_tuple_containing_walrus(node)
     ):
         return False
 
+    max_delimiter_priority = max_delimiter_priority_in_atom(node)
+    # This condition tries to prevent removing non-optional brackets
+    # around a tuple, however, can be a bit overzealous so we provide
+    # and option to skip this check for `for` and `with` statements.
+    if not remove_brackets_around_comma and max_delimiter_priority >= COMMA_PRIORITY:
+        return False
+
+    if parent.type == syms.dictsetmaker and max_delimiter_priority != 0:
+        return False
+
     if is_walrus_assignment(node):
         if parent.type in [
             syms.annassign,

tests/data/cases/preview_long_dict_values_2.py

@@ -155,7 +155,7 @@ def bar():
             ),
         }
         x = {
-            "foobar": 123 + 456,
+            "foobar": (123 + 456),
         }
         x = {
             "foobar": (123) + 456,