unused imports removed

Author: uzairmukadam

sheet_ql.py

@@ -11,9 +11,9 @@
 import re
 import argparse
 import logging
-import warnings
 from collections import deque
 from typing import Any, Optional, List, Tuple, Dict
+from importlib.util import find_spec
 
 import pandas as pd
 import duckdb
@@ -22,19 +22,12 @@
 from rich.table import Table
 from openpyxl.styles import Font, PatternFill
 
-try:
-    import python_calamine
-
-    CALAMINE_AVAILABLE = True
-except ImportError:
-    CALAMINE_AVAILABLE = False
+# --- OPTIONAL DEPENDENCIES ---
+# We check for availability without importing the modules directly
+# to satisfy linters and avoid unused import warnings.
 
-try:
-    import xlsxwriter
-
-    XLSXWRITER_AVAILABLE = True
-except ImportError:
-    XLSXWRITER_AVAILABLE = False
+CALAMINE_AVAILABLE = find_spec("python_calamine") is not None
+XLSXWRITER_AVAILABLE = find_spec("xlsxwriter") is not None
 
 try:
     from prompt_toolkit import PromptSession

tests/test_sheet_ql.py

@@ -165,7 +165,7 @@ def test_07_exit_with_staging_prompt(self, mock_export):
     def test_08_rename_command(self):
         """Verifies the .rename meta-command updates DB and Cache."""
         self.tool._load_data([self.csv_path])
-        self.tool._handle_meta_command(f".rename sales_2023_csv old_sales")
+        self.tool._handle_meta_command(".rename sales_2023_csv old_sales")
 
         tables = (
             self.tool.db_connection.execute("SHOW TABLES").fetchdf()["name"].tolist()