Enable flake8-unused-arguments Ruff rule.

pelican/__init__.py

@@ -252,6 +252,7 @@ class Pelican:
 
 class PrintSettings(argparse.Action):
     def __call__(self, parser, namespace, values, option_string):
+        del option_string  # Unused argument
         init_logging(name=__name__)
 
         try:
@@ -287,6 +288,7 @@ class PrintSettings(argparse.Action):
 
 class ParseOverrides(argparse.Action):
     def __call__(self, parser, namespace, values, option_string=None):
+        del parser, option_string  # Unused arguments
         overrides = {}
         for item in values:
             try:

pelican/contents.py

@@ -431,7 +431,7 @@ class Content:
         return self.get_content(self.get_siteurl())
 
     @memoized
-    def get_summary(self, siteurl: str) -> str:
+    def get_summary(self, _siteurl: str) -> str:
         """Returns the summary of an article.
 
         This is based on the summary metadata if set, otherwise truncate the
@@ -552,6 +552,7 @@ class SkipStub(Content):
     def __init__(
         self, content, metadata=None, settings=None, source_path=None, context=None
     ):
+        del content, metadata, settings, context  # Unused arguments
         self.source_path = source_path
 
     def is_valid(self):

pelican/generators.py

@@ -296,6 +296,7 @@ class _FileLoader(BaseLoader):
         self.fullpath = os.path.join(basedir, path)
 
     def get_source(self, environment, template):
+        del environment  # Unused argument
         if template != self.path or not os.path.exists(self.fullpath):
             raise TemplateNotFound(template)
         mtime = os.path.getmtime(self.fullpath)
@@ -1022,6 +1023,7 @@ class StaticGenerator(Generator):
         signals.static_generator_finalized.send(self)
 
     def generate_output(self, writer):
+        del writer  # Unused argument
         self._copy_paths(
             self.settings["THEME_STATIC_PATHS"],
             self.theme,
@@ -1131,6 +1133,7 @@ class SourceFileGenerator(Generator):
         copy(obj.source_path, dest)
 
     def generate_output(self, writer=None):
+        del writer  # Unused argument
         logger.info("Generating source files...")
         for obj in chain(self.context["articles"], self.context["pages"]):
             self._create_source(obj)

pelican/readers.py

@@ -45,15 +45,15 @@ DUPLICATES_DEFINITIONS_ALLOWED = {
 
 METADATA_PROCESSORS = {
     "tags": lambda x, y: ([Tag(tag, y) for tag in ensure_metadata_list(x)] or _DISCARD),
-    "date": lambda x, y: get_date(x.replace("_", " ")),
+    "date": lambda x, _y: get_date(x.replace("_", " ")),
-    "modified": lambda x, y: get_date(x),
+    "modified": lambda x, _y: get_date(x),
-    "status": lambda x, y: x.strip() or _DISCARD,
+    "status": lambda x, _y: x.strip() or _DISCARD,
     "category": lambda x, y: _process_if_nonempty(Category, x, y),
     "author": lambda x, y: _process_if_nonempty(Author, x, y),
     "authors": lambda x, y: (
         [Author(author, y) for author in ensure_metadata_list(x)] or _DISCARD
     ),
-    "slug": lambda x, y: x.strip() or _DISCARD,
+    "slug": lambda x, _y: x.strip() or _DISCARD,
 }
 
 logger = logging.getLogger(__name__)
@@ -121,6 +121,7 @@ class BaseReader:
 
     def read(self, source_path):
         "No-op parser"
+        del source_path  # Unused argument
         content = None
         metadata = {}
         return content, metadata
@@ -165,6 +166,7 @@ class PelicanHTMLTranslator(HTMLTranslator):
         self.body.append(self.starttag(node, "abbr", "", **attrs))
 
     def depart_abbreviation(self, node):
+        del node  # Unused argument
         self.body.append("</abbr>")
 
     def visit_image(self, node):

pelican/rstdirectives.py

@@ -79,6 +79,7 @@ class abbreviation(nodes.Inline, nodes.TextElement):
 
 
 def abbr_role(typ, rawtext, text, lineno, inliner, options=None, content=None):
+    del typ, rawtext, lineno, inliner, options, content  # Unused arguments
     text = utils.unescape(text)
     m = _abbr_re.search(text)
     if m is None:

pelican/tests/test_contents.py

@@ -333,7 +333,7 @@ class TestPage(TestBase):
         self.assertEqual("custom", custom_page.template)
 
     def test_signal(self):
-        def receiver_test_function(sender):
+        def receiver_test_function(_sender):
             receiver_test_function.has_been_called = True
 
         receiver_test_function.has_been_called = False

pelican/tests/test_importer.py

@@ -552,7 +552,7 @@ class TestWordpressXMLAttachements(TestCaseWithCLocale):
 class TestTumblrImporter(TestCaseWithCLocale):
     @patch("pelican.tools.pelican_import._get_tumblr_posts")
     def test_posts(self, get):
-        def get_posts(api_key, blogname, offset=0):
+        def get_posts(_api_key, _blogname, offset=0):
             if offset > 0:
                 return []
 
@@ -603,7 +603,7 @@ class TestTumblrImporter(TestCaseWithCLocale):
 
     @patch("pelican.tools.pelican_import._get_tumblr_posts")
     def test_video_embed(self, get):
-        def get_posts(api_key, blogname, offset=0):
+        def get_posts(_api_key, _blogname, offset=0):
             if offset > 0:
                 return []
 
@@ -657,7 +657,7 @@ class TestTumblrImporter(TestCaseWithCLocale):
 
     @patch("pelican.tools.pelican_import._get_tumblr_posts")
     def test_broken_video_embed(self, get):
-        def get_posts(api_key, blogname, offset=0):
+        def get_posts(_api_key, _blogname, offset=0):
             if offset > 0:
                 return []
 

pelican/tests/test_server.py

@@ -8,7 +8,7 @@ from pelican.tests.support import unittest
 
 
 class MockRequest:
-    def makefile(self, *args, **kwargs):
+    def makefile(self, *_args, **_kwargs):
         return BytesIO(b"")
 
 

pelican/tools/pelican_import.py

@@ -941,7 +941,6 @@ def fields2pelican(
     strip_raw=False,
     disable_slugs=False,
     dirpage=False,
-    filename_template=None,
     filter_author=None,
     wp_custpost=False,
     wp_attach=False,

pelican/utils.py

@@ -8,7 +8,6 @@ import os
 import pathlib
 import re
 import shutil
-import sys
 import traceback
 import unicodedata
 import urllib
@@ -215,7 +214,7 @@ def deprecated_attribute(
         _warn()
         setattr(self, new, value)
 
-    def decorator(dummy):
+    def decorator(_dummy):
         return property(fget=fget, fset=fset, doc=doc)
 
     return decorator
@@ -235,9 +234,7 @@ def get_date(string: str) -> datetime.datetime:
 
 
 @contextmanager
-def pelican_open(
+def pelican_open(filename: str, mode: str = "r") -> Generator[str, None, None]:
-    filename: str, mode: str = "r", strip_crs: bool = (sys.platform == "win32")
-) -> Generator[str, None, None]:
     """Open a file and return its content"""
 
     # utf-8-sig will clear any BOM if present
@@ -493,6 +490,7 @@ class _HTMLWordTruncator(HTMLParser):
             self.add_word(self.last_word_end)
 
     def handle_starttag(self, tag: str, attrs: Any) -> None:
+        del attrs  # Unused argument
         self.add_last_word()
         if tag not in self._singlets:
             self.open_tags.insert(0, tag)

pyproject.toml

@@ -125,7 +125,7 @@ select = [
 
     # the rest in alphabetical order:
     "A",   # flake8-builtins
-    # TODO: "ARG", # flake8-unused-arguments
+    "ARG", # flake8-unused-arguments
     "B",   # flake8-bugbear
     # TODO: "BLE", # flake8-blind-except
     # TODO: Do I want "COM", # flake8-commas