diff --git a/.gitignore b/.gitignore
index 39aa9026..f9bf9c80 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@ temp_testing/*
 build
 dist
 Issues/rule_keywords/test_DeleteMolecules_changed.bngl
+.jules/
+__pycache__/
diff --git a/bionetgen/atomizer/writer/bnglWriter.py b/bionetgen/atomizer/writer/bnglWriter.py
index d6a446e7..8bc50b08 100644
--- a/bionetgen/atomizer/writer/bnglWriter.py
+++ b/bionetgen/atomizer/writer/bnglWriter.py
@@ -116,17 +116,13 @@ def balanceTranslator(reactant, product, translator):
     for rMolecule in rMolecules:
         for pMolecule in pMolecules:
             if rMolecule.name == pMolecule.name:
+                p_names = {y.name for y in pMolecule.components}
+                r_names = {y.name for y in rMolecule.components}
                 overFlowingComponents = [
-                    x
-                    for x in rMolecule.components
-                    if x.name not in [y.name for y in pMolecule.components]
+                    x for x in rMolecule.components if x.name not in p_names
                 ]
                 overFlowingComponents.extend(
-                    [
-                        x
-                        for x in pMolecule.components
-                        if x.name not in [y.name for y in rMolecule.components]
-                    ]
+                    [x for x in pMolecule.components if x.name not in r_names]
                 )
                 rMolecule.removeComponents(overFlowingComponents)
                 pMolecule.removeComponents(overFlowingComponents)