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/tests/test_pathwaycommons.py b/tests/test_pathwaycommons.py
new file mode 100644
index 00000000..ae7d3bfd
--- /dev/null
+++ b/tests/test_pathwaycommons.py
@@ -0,0 +1,23 @@
+import urllib.request
+import urllib.error
+from unittest.mock import patch
+from bionetgen.atomizer.utils.pathwaycommons import name2uniprot
+
+
+def test_name2uniprot_organism_httperror():
+    with patch("urllib.request.urlopen") as mock_urlopen:
+        # Create an HTTPError instance
+        # HTTPError requires url, code, msg, hdrs, fp
+        mock_urlopen.side_effect = urllib.error.HTTPError(
+            url="http://www.uniprot.org/uniprot/?",
+            code=500,
+            msg="Internal Server Error",
+            hdrs={},
+            fp=None,
+        )
+
+        # Call the function with an organism to hit the target try/except block
+        result = name2uniprot("TestGene", ["http://identifiers.org/taxonomy/9606"])
+
+        # The function should catch the HTTPError and return None
+        assert result is None