diff --git a/python/tvm/relay/dataflow_pattern/__init__.py b/python/tvm/relay/dataflow_pattern/__init__.py
index 028555faf883b..9852486b55ecb 100644
--- a/python/tvm/relay/dataflow_pattern/__init__.py
+++ b/python/tvm/relay/dataflow_pattern/__init__.py
@@ -599,6 +599,7 @@ def __init__(
     args: List[relay.dataflow_pattern.DFPattern]
         The new arguments of the CallPattern.
     """
+
     def reset_args(
         self,
         args: List["DFPattern"],
@@ -734,6 +735,7 @@ def __init__(self, left: "DFPattern", right: "DFPattern"):
     left: relay.dataflow_pattern.DFPattern
         The new left of the AltPattern.
     """
+
     def reset_left(
         self,
         left: "DFPattern",
@@ -747,6 +749,7 @@ def reset_left(
     right: relay.dataflow_pattern.DFPattern
         The new right of the AltPattern.
     """
+
     def reset_right(
         self,
         right: "DFPattern",
diff --git a/tests/python/relay/test_dataflow_pattern.py b/tests/python/relay/test_dataflow_pattern.py
index 10d68e38e9650..726655862ec57 100644
--- a/tests/python/relay/test_dataflow_pattern.py
+++ b/tests/python/relay/test_dataflow_pattern.py
@@ -1979,7 +1979,7 @@ def test_rewrite_with_pattern_recursion():
 
     class TheRewrite(DFPatternCallback):
         def __init__(self, pattern):
-            super(TheRewrite, self).__init__(rewrite_once = True)
+            super(TheRewrite, self).__init__(rewrite_once=True)
             self.pattern = pattern
 
         def callback(self, pre, post, node_map):
@@ -1997,7 +1997,7 @@ def test_reset_call_args():
     def test_reset_alt_left():
         dense_pattern = is_op("nn.dense")(wildcard(), wildcard())
         or_pattern = wildcard() | dense_pattern
-        the_pattern = is_op("cast")( or_pattern )
+        the_pattern = is_op("cast")(or_pattern)
         or_pattern.reset_left(the_pattern)
 
         actual = rewrite(TheRewrite(the_pattern), oup)
@@ -2006,7 +2006,7 @@ def test_reset_alt_left():
     def test_reset_alt_right():
         dense_pattern = is_op("nn.dense")(wildcard(), wildcard())
         or_pattern = dense_pattern | wildcard()
-        the_pattern = is_op("cast")( or_pattern )
+        the_pattern = is_op("cast")(or_pattern)
         or_pattern.reset_right(the_pattern)
 
         actual = rewrite(TheRewrite(the_pattern), oup)
@@ -2016,5 +2016,6 @@ def test_reset_alt_right():
     test_reset_alt_left()
     test_reset_alt_right()
 
+
 if __name__ == "__main__":
     tvm.testing.main()