diff --git a/src/deuthon/__main__.py b/src/deuthon/__main__.py
index fefd73d..a7491cf 100755
--- a/src/deuthon/__main__.py
+++ b/src/deuthon/__main__.py
@@ -1,7 +1,5 @@
 #!/usr/bin/env python3
 
-import ast
-import tokenize
 import pathlib
 import sys
 import traceback
@@ -25,7 +23,6 @@ def main():
 
     if args.file:
         script_path = pathlib.Path(args.file).absolute()
-        script_dir = script_path.parent
 
         # Read and transpile the German code
         with open(script_path) as f:
diff --git a/src/deuthon/importer.py b/src/deuthon/importer.py
index b179247..c215daa 100644
--- a/src/deuthon/importer.py
+++ b/src/deuthon/importer.py
@@ -32,7 +32,6 @@ class DeuthonSourceLoader(importlib.machinery.SourceFileLoader):
     def source_to_code(self, data, path, *, _optimize=-1):
         reader = tokenize.open(path)
         try:
-            encoding = reader.encoding
             source_data = reader.read()
         finally:
             reader.close()
@@ -122,12 +121,6 @@ class DeuthonModuleFinder(importlib.abc.MetaPathFinder):
             if deuthon_path:
                 path.extend(deuthon_path.split(os.pathsep))
 
-        # The base name for the file we're trying to find will be the last component of 'fullname'
-        # e.g., for 'testmodul.submodul.test', we want to end up with 'test.deu'
-        module_basename = (
-            fullname.rpartition(".")[-1] + self.extension
-        )  # e.g., 'test.deu'
-
         for entry in path:
             module_full_path = os.path.join(
                 entry, fullname.replace(".", "/") + self.extension
diff --git a/src/deuthon/transformer.py b/src/deuthon/transformer.py
index 72404e4..f52fa7e 100644
--- a/src/deuthon/transformer.py
+++ b/src/deuthon/transformer.py
@@ -1,4 +1,3 @@
-import ast
 import tokenize
 
 from io import BytesIO