diff --git a/burr/core/action.py b/burr/core/action.py
index eb6fceff5..5a228e0ad 100644
--- a/burr/core/action.py
+++ b/burr/core/action.py
@@ -243,16 +243,12 @@ def validate_inputs(self, inputs: Optional[Dict[str, Any]]) -> None:
         missing_inputs = required_inputs - given_inputs
         additional_inputs = given_inputs - required_inputs - optional_inputs
         if missing_inputs or additional_inputs:
-            raise ValueError(
-                f"Inputs to function {self} are invalid. "
-                + f"Missing the following inputs: {', '.join(missing_inputs)}."
-                if missing_inputs
-                else (
-                    "" f"Additional inputs: {','.join(additional_inputs)}."
-                    if additional_inputs
-                    else ""
-                )
-            )
+            parts = [f"Inputs to function {self} are invalid."]
+            if missing_inputs:
+                parts.append(f"Missing the following inputs: {', '.join(missing_inputs)}.")
+            if additional_inputs:
+                parts.append(f"Additional inputs: {', '.join(additional_inputs)}.")
+            raise ValueError(" ".join(parts))
 
     def is_async(self) -> bool:
         """Convenience method to check if the function is async or not.
diff --git a/burr/core/graph.py b/burr/core/graph.py
index 871135962..b31e1cab6 100644
--- a/burr/core/graph.py
+++ b/burr/core/graph.py
@@ -95,20 +95,20 @@ def _render_graphviz(
 
     if output_file_path.suffix != "":
         # infer format from path; i.e., extract `svg` from the `.svg` suffix
-        format = output_file_path.suffix.partition(".")[-1]
+        fmt = output_file_path.suffix.partition(".")[-1]
     else:
-        format = "png"
+        fmt = "png"
 
     path_without_suffix = pathlib.Path(output_file_path.parent, output_file_path.stem)
     if write_dot or view:
         # `.render()` appends the `format` kwarg to the filename
         # i.e., we need to pass `/my/filepath` to generate `/my/filepath.png`
         # otherwise, passing `/my/filepath.png` will generate `/my/filepath.png.png`
-        graphviz_obj.render(path_without_suffix, format=format, view=view)
+        graphviz_obj.render(path_without_suffix, format=fmt, view=view)
     else:
         # `.pipe()` doesn't append the format to the filename, so we do it explicitly
-        pathlib.Path(f"{path_without_suffix}.{format}").write_bytes(
-            graphviz_obj.pipe(format=format)
+        pathlib.Path(f"{path_without_suffix}.{fmt}").write_bytes(
+            graphviz_obj.pipe(format=fmt)
         )
 
 
diff --git a/burr/integrations/persisters/b_aiosqlite.py b/burr/integrations/persisters/b_aiosqlite.py
index a75eb682c..8439b965b 100644
--- a/burr/integrations/persisters/b_aiosqlite.py
+++ b/burr/integrations/persisters/b_aiosqlite.py
@@ -26,7 +26,7 @@
 from burr.core import State
 from burr.core.persistence import AsyncBaseStatePersister, PersistedStateData
 
-logger = logging.getLogger()
+logger = logging.getLogger(__name__)
 
 try:
     from typing import Self