diff --git a/src/polyphy/core/common.py b/src/polyphy/core/common.py
index 22d525c..c55a3af 100644
--- a/src/polyphy/core/common.py
+++ b/src/polyphy/core/common.py
@@ -167,7 +167,7 @@ class PPInternalData:
     def __init_internal_data__(self, kernels):
         pass
 
-    def edit_data(self, edit_index: PPTypes.INT_CPU, 
+    def edit_data(self, edit_index: PPTypes.INT_CPU,
                   window: ti.ui.Window) -> PPTypes.INT_CPU:
         pass
 
diff --git a/src/polyphy/core/discrete3D.py b/src/polyphy/core/discrete3D.py
index 4319b1e..b2ed645 100644
--- a/src/polyphy/core/discrete3D.py
+++ b/src/polyphy/core/discrete3D.py
@@ -374,7 +374,7 @@ def __init__(self, ppInternalData, ppConfig, batch_mode=False, num_iterations=-1
                 if self.do_quit:
                     break
 
-            if batch_mode is False:    
+            if not batch_mode:    
                 window.destroy()