Remove flake8 usage, use ruff in CI, fix ruff warnings

.github/dependabot.yml

@@ -8,7 +8,6 @@ updates:
       dev-dependencies:
         patterns:
           - "pytest*"
-          - "flake8*"
           - "black"
           - "isort"
           - "coverage"

.github/workflows/test.yml

@@ -33,12 +33,9 @@ jobs:
     - name: Install library
       run: poetry install --no-interaction
 
-    - name: Lint with flake8
+    - name: Lint with ruff
       run: |
-        # stop the build if there are Python syntax errors or undefined names
-        poetry run flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        poetry run flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+        poetry run ruff check . --statistics
     - name: Test with pytest
       run: |
         poetry run pytest --cov=./

df_translation_toolkit/convert/objects_po_to_csv.py

@@ -78,7 +78,13 @@ def convert(po_file: TextIO, csv_file: TextIO, error_file: TextIO | None = None)
 
 
 @app.command()
-def main(po_file: Path, csv_file: Path, encoding: str, append: bool = False, errors_file: Path | None = None) -> None:  # noqa: FBT001, FBT002
+def main(
+    po_file: Path,
+    csv_file: Path,
+    encoding: str,
+    append: bool = False,  # noqa: FBT001, FBT002
+    errors_file_path: Path | None = None,
+) -> None:
     """
     Convert a po file into a csv file in a specified encoding
     """
@@ -87,7 +93,7 @@ def main(po_file: Path, csv_file: Path, encoding: str, append: bool = False, err
         mode = "a" if append else "w"
         with (
             open(csv_file, mode, newline="", encoding=encoding, errors="replace") as outfile,
-            maybe_open(errors_file, "w", encoding="utf-8") as errors_file,
+            maybe_open(errors_file_path, "w", encoding="utf-8") as errors_file,
         ):
             convert(pofile, outfile, errors_file)