Fix linting errors

ensysmod/core/file_upload.py

@@ -215,16 +215,7 @@ def process_excel_file(
     If as_matrix is true, the file is read as a matrix, otherwise it is read per column.
     """
     try:
-        if isinstance(file, UploadFile):
-            file_path = file.filename if file.filename is not None else ""
-            content = file.file.read()
-            df: pd.DataFrame = pd.read_excel(content, engine="openpyxl")
-        elif isinstance(file, tuple):
-            zip_archive, file_path= file
-            with zip_archive.open(file_path) as content:
-                df: pd.DataFrame = pd.read_excel(content, engine="openpyxl")
-        else:
-            raise TypeError("Unknown file type.")
+        file_path, df = read_excel_file(file)
 
         if as_matrix:
             # determine the labels (region and region_to) of rows and columns
@@ -265,3 +256,17 @@ def process_excel_file(
 
     except Exception as e:
         return FileUploadResult(status=FileStatus.ERROR, file=file_path, message=str(e))
+
+
+def read_excel_file(file: UploadFile | tuple[ZipFile, str]) -> tuple[str, pd.DataFrame]:
+    if isinstance(file, UploadFile):
+        file_path = file.filename if file.filename is not None else ""
+        content = file.file.read()
+        df: pd.DataFrame = pd.read_excel(content, engine="openpyxl")
+    elif isinstance(file, tuple):
+        zip_archive, file_path = file
+        with zip_archive.open(file_path) as content:
+            df: pd.DataFrame = pd.read_excel(content, engine="openpyxl")
+    else:
+        raise TypeError(f"Unknown file type: {type(file)}")
+    return file_path, df

ensysmod/schemas/transmission_distance.py

@@ -1,4 +1,4 @@
-from pydantic import BaseModel, Field, NonNegativeFloat, validator
+from pydantic import BaseModel, Field, validator
 
 from ensysmod.schemas.base_ref_component_region import RefCRBase, RefCRBaseBase, RefCRBaseCreate, RefCRBaseUpdate
 from ensysmod.schemas.region import Region

ensysmod/schemas/yearly_full_load_hours_min.py

@@ -26,14 +26,12 @@ class YearlyFullLoadHoursMinCreate(YearlyFullLoadHoursMinBase, RefCRBaseCreate):
     """
 
 
-
 class YearlyFullLoadHoursMinUpdate(YearlyFullLoadHoursMinBase, RefCRBaseUpdate):
     """
     Attributes to receive via API on update of a YearlyFullLoadHoursMin entry.
     """
 
 
-
 class YearlyFullLoadHoursMin(YearlyFullLoadHoursMinBase, RefCRBase):
     """
     Attributes to return via API for a YearlyFullLoadHoursMin entry.

tests/utils/data_generator/datasets.py

@@ -55,6 +55,7 @@ def dataset_create(
     )
     return crud.dataset.create(db=db, obj_in=create_request)
 
+
 @contextmanager
 def get_dataset_zip(folder_name: str) -> Generator[Path, None, None]:
     """