Simplify error messages

src/wxflow/file_utils.py

@@ -84,9 +84,9 @@ def _copy_files(filelist, required=True):
                 try:
                     cp(src, dest)
                     logger.info(f'Copied {src} to {dest}')
-                except Exception as ee:
+                except Exception:
                     logger.exception(f"Error copying {src} to {dest}")
-                    raise OSError(str(ee), f"\nError copying {src} to {dest}")
+                    raise OSError(f"Error copying {src} to {dest}")
             else:
                 if required:
                     logger.exception(f"Source file '{src}' does not exist and is required, ABORT!")
@@ -107,6 +107,6 @@ def _make_dirs(dirlist):
             try:
                 mkdir(dd)
                 logger.info(f'Created {dd}')
-            except Exception as ee:
+            except Exception:
                 logger.exception(f"Error creating directory {dd}")
-                raise OSError(str(ee), f"\nError creating directory {dd}")
+                raise OSError(f"\nError creating directory {dd}")

src/wxflow/sqlitedb.py

@@ -107,13 +107,13 @@ def remove_column(self, table_name: str, column_name: str) -> None:
         try:
             query = f"ALTER TABLE {table_name} DROP COLUMN {column_name}"
             self.execute_query(query)
-        except sqlite3.OperationalError as exc:
+        except sqlite3.OperationalError:
             query = f"PRAGMA table_info({table_name})"
             cursor = self.execute_query(query)
             columns = [column[1] for column in cursor.fetchall()]
             if column_name not in columns:
                 raise ValueError(f"Column '{column_name}' does not exist in table '{table_name}'")
-            raise sqlite3.OperationalError(str(exc))
+            raise sqlite3.OperationalError("An unknown SQL error occurred")
 
     def update_data(
         self,