fix ruff check errors

Author: david-pershouse

src/binarylane/config/sources.py

@@ -1,12 +1,14 @@
 from __future__ import annotations
 
-import argparse
 import configparser
 import os
 import sys
 from abc import ABC
 from pathlib import Path
-from typing import ClassVar, Dict, Optional
+from typing import ClassVar, Dict, Optional, TYPE_CHECKING
+
+if TYPE_CHECKING:
+    import argparse
 
 
 class _SourceBase(ABC):

src/binarylane/console/parser/attribute.py

@@ -1,13 +1,13 @@
 from __future__ import annotations
 
-import argparse
 import logging
 from abc import ABC, abstractmethod
 from typing import TYPE_CHECKING, ClassVar, List, Optional
 
 logger = logging.getLogger(__name__)
 
 if TYPE_CHECKING:
+    import argparse
     from binarylane.console.parser.object_attribute import ObjectAttribute
     from binarylane.console.parser.parser import Parser
 

src/binarylane/console/parser/object_attribute.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-import argparse
 import logging
 from typing import TYPE_CHECKING, List, Optional, TypeVar
 
@@ -9,6 +8,7 @@
 from binarylane.console.parser.attribute import Attribute
 
 if TYPE_CHECKING:
+    import argparse
     from binarylane.console.parser.parser import Parser
 
 logger = logging.getLogger(__name__)