feat: optimize imports and streamline processing

Removed unused imports across various modules, streamlining the codebase by eliminating the `ast` and `tokenize` modules where not directly utilized. This clean-up not only simplifies the code making it more maintainable but also potentially improves runtime performance by reducing overhead. Additionally, redundant variables and comments that do not contribute to clarity or functionality, such as `script_dir` and detailed notes on module path construction, were pruned to further enhance code readability and efficiency.

This change underscores our commitment to maintaining a lean and efficient codebase, facilitating easier updates and modifications in the future.

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:

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

src/deuthon/transformer.py

@@ -1,4 +1,3 @@
-import ast
 import tokenize
 
 from io import BytesIO