Add some more del statements (#163)

Author: hf-kklein

src/kohlrahbi/__init__.py

@@ -226,6 +226,7 @@ def main(pruefis: list[str], input_path: Path, output_path: Path, file_type: lis
             )
             continue
         del ahb_table
+        del ahb_file_finder
         if "unfolded_ahb" in locals():
             del unfolded_ahb
         gc.collect()

src/kohlrahbi/ahbfilefinder.py

@@ -44,6 +44,7 @@ def filter_for_latest_ahb_docx_files(self) -> None:
         """
         Filter the list of AHB docx paths for the latest AHB docx files.
         The latest files contain `LesefassungmitFehlerkorrekturen` in their file names.
+        This method is _not_ pure. It changes the state of the object.
         """
         result: list[Path] = []
 
@@ -75,6 +76,7 @@ def filter_for_latest_ahb_docx_files(self) -> None:
     def filter_docx_files_for_edifact_format(self, edifact_format: EdifactFormat) -> None:
         """
         Returns a list of docx files which contain the given edifact format.
+        This method is not pure. It changes the state of the object.
         """
 
         self.paths_to_docx_files = [path for path in self.paths_to_docx_files if str(edifact_format) in path.name]
@@ -85,6 +87,7 @@ def get_docx_files_which_may_contain_searched_pruefi(self, searched_pruefi: str)
         Unfortunately, it is not clear in which docx the pruefidentifikator you are looking for is located.
         A 11042 belongs to the UTILMD format. However, there are seven docx files that describe the UTILMD format.
         A further reduction of the number of files is not possible with the pruefidentifikator only.
+        This method is _not_ pure. It changes the state of the object.
         """
 
         edifact_format = get_format_of_pruefidentifikator(searched_pruefi)

src/kohlrahbi/unfoldedahb/unfoldedahbtable.py

@@ -360,6 +360,10 @@ def dump_flatahb_json(self, output_directory_path: Path) -> None:
             self.meta_data.pruefidentifikator,
             flatahb_output_directory_path / f"{self.meta_data.pruefidentifikator}.json",
         )
+        del flat_ahb
+        del dump_data
+        if "existing_flat_ahb" in locals():
+            del existing_flat_ahb
 
     def convert_to_dataframe(self) -> pd.DataFrame:
         """