diff --git a/src/deuthon/__main__.py b/src/deuthon/__main__.py
index 5d8c20a..893ed2d 100755
--- a/src/deuthon/__main__.py
+++ b/src/deuthon/__main__.py
@@ -12,9 +12,6 @@ from deuthon.transformer import parse_german_code, prepare_builtin_overrides
 from deuthon.importer import install_deuthon_importer, import_base
 from deuthon.interpreter import interpreter
 
-import deuthon.base
-
-
 def main():
     args = ArgumentParser()
     args.add_argument("file", default="", nargs="?")
@@ -41,7 +38,7 @@ def main():
 
         try:
             exec(code_object, {"__file__": pathlib.Path(args.file).absolute()})
-        except Ausnahme as e:
+        except Ausnahme as e:  # noqa: F821
             # Extract traceback information, excluding frames related to the interpreter
             tb = e.__traceback__
             while tb is not None: