Chore(mypy): Annotate None returns for typing improvements (#11213)

src/paperless_text/apps.py

@@ -6,7 +6,7 @@ from paperless_text.signals import text_consumer_declaration
 class PaperlessTextConfig(AppConfig):
     name = "paperless_text"
 
-    def ready(self):
+    def ready(self) -> None:
         from documents.signals import document_consumer_declaration
 
         document_consumer_declaration.connect(text_consumer_declaration)

src/paperless_text/parsers.py

@@ -40,10 +40,10 @@ class TextDocumentParser(DocumentParser):
 
         return out_path
 
-    def parse(self, document_path, mime_type, file_name=None):
+    def parse(self, document_path, mime_type, file_name=None) -> None:
         self.text = self.read_file_handle_unicode_errors(document_path)
 
-    def get_settings(self):
+    def get_settings(self) -> None:
         """
         This parser does not implement additional settings yet
         """

src/paperless_text/tests/test_parser.py

@@ -5,13 +5,21 @@ from paperless_text.parsers import TextDocumentParser
 
 
 class TestTextParser:
-    def test_thumbnail(self, text_parser: TextDocumentParser, sample_txt_file: Path):
+    def test_thumbnail(
+        self,
+        text_parser: TextDocumentParser,
+        sample_txt_file: Path,
+    ) -> None:
         # just make sure that it does not crash
         f = text_parser.get_thumbnail(sample_txt_file, "text/plain")
         assert f.exists()
         assert f.is_file()
 
-    def test_parse(self, text_parser: TextDocumentParser, sample_txt_file: Path):
+    def test_parse(
+        self,
+        text_parser: TextDocumentParser,
+        sample_txt_file: Path,
+    ) -> None:
         text_parser.parse(sample_txt_file, "text/plain")
 
         assert text_parser.get_text() == "This is a test file.\n"
@@ -21,7 +29,7 @@ class TestTextParser:
         self,
         text_parser: TextDocumentParser,
         malformed_txt_file: Path,
-    ):
+    ) -> None:
         """
         GIVEN:
             - Text file which contains invalid UTF bytes
@@ -37,7 +45,7 @@ class TestTextParser:
         assert text_parser.get_text() == "Pantothens<EFBFBD>ure\n"
         assert text_parser.get_archive_path() is None
 
-    def test_thumbnail_large_file(self, text_parser: TextDocumentParser):
+    def test_thumbnail_large_file(self, text_parser: TextDocumentParser) -> None:
         """
         GIVEN:
             - A very large text file (>50MB)