diff --git a/lib/ruyaml/comments.py b/lib/ruyaml/comments.py
index 0e30c08..1fa2811 100644
--- a/lib/ruyaml/comments.py
+++ b/lib/ruyaml/comments.py
@@ -1105,9 +1105,9 @@ def __init__(self, *args, **kw):
         except TypeError:
             raise
 
-    __delitem__ = (
-        __setitem__
-    ) = clear = pop = popitem = setdefault = update = raise_immutable
+    __delitem__ = __setitem__ = clear = pop = popitem = setdefault = update = (
+        raise_immutable
+    )
 
     # need to implement __getitem__, __iter__ and __len__
     def __getitem__(self, index):
diff --git a/lib/ruyaml/emitter.py b/lib/ruyaml/emitter.py
index d5fe1a1..cb08be6 100644
--- a/lib/ruyaml/emitter.py
+++ b/lib/ruyaml/emitter.py
@@ -1234,9 +1234,9 @@ def analyze_scalar(self, scalar):
         # Spaces followed by breaks, as well as special character are only
         # allowed for double quoted scalars.
         if special_characters:
-            allow_flow_plain = (
-                allow_block_plain
-            ) = allow_single_quoted = allow_block = False
+            allow_flow_plain = allow_block_plain = allow_single_quoted = allow_block = (
+                False
+            )
         elif space_break:
             allow_flow_plain = allow_block_plain = allow_single_quoted = False
             if not self.allow_space_break: