Enable ruff's flake8-unused-arguments (ARG) rules (#2900)

pygmt/clib/session.py

@@ -369,7 +369,7 @@ def create(self, name):
         self._error_log = []
 
         @ctp.CFUNCTYPE(ctp.c_int, ctp.c_void_p, ctp.c_char_p)
-        def print_func(file_pointer, message):
+        def print_func(file_pointer, message):  # noqa: ARG001
             """
             Callback function that the GMT C API will use to print log and
             error messages.

pygmt/sphinx_gallery.py

@@ -19,7 +19,7 @@ class PyGMTScraper:
     ``conf.py`` as the ``"image_scrapers"`` argument.
     """
 
-    def __call__(self, block, block_vars, gallery_conf):
+    def __call__(self, block, block_vars, gallery_conf):  # noqa: ARG002
         """
         Called by sphinx-gallery to save the figures generated after running
         code.

pygmt/tests/test_clib.py

@@ -38,7 +38,7 @@ def mock(session, func, returns=None, mock_func=None):
     """
     if mock_func is None:
 
-        def mock_api_function(*args):
+        def mock_api_function(*args):  # noqa: ARG001
             """
             A mock GMT API function that always returns a given value.
             """
@@ -523,7 +523,7 @@ def test_info_dict():
         assert lib.info
 
     # Mock GMT_Get_Default to return always the same string
-    def mock_defaults(api, name, value):
+    def mock_defaults(api, name, value):  # noqa: ARG001
         """
         Put 'bla' in the value buffer.
         """
@@ -552,7 +552,7 @@ def test_fails_for_wrong_version():
     """
 
     # Mock GMT_Get_Default to return an old version
-    def mock_defaults(api, name, value):
+    def mock_defaults(api, name, value):  # noqa: ARG001
         """
         Return an old version.
         """

pygmt/tests/test_clib_loading.py

@@ -79,7 +79,9 @@ def test_load_libgmt_fails(monkeypatch):
             "darwin" if sys.platform == "linux" else "linux",
         )
         mpatch.setattr(
-            subprocess, "check_output", lambda cmd, encoding: "libfakegmt.so"
+            subprocess,
+            "check_output",
+            lambda cmd, encoding: "libfakegmt.so",  # noqa: ARG005
         )
         with pytest.raises(GMTCLibNotFoundError):
             check_libgmt(load_libgmt())

pygmt/tests/test_figure.py

@@ -225,7 +225,7 @@ def test_figure_savefig():
     """
     kwargs_saved = []
 
-    def mock_psconvert(*args, **kwargs):
+    def mock_psconvert(*args, **kwargs):  # noqa: ARG001
         """
         Just record the arguments.
         """

pygmt/tests/test_info.py

@@ -99,7 +99,7 @@ def test_info_dataframe(dtype):
     """
     Make sure info works on pandas.DataFrame inputs.
     """
-    table = pd.read_csv(POINTS_DATA, sep=" ", header=None)
+    table = pd.read_csv(POINTS_DATA, sep=" ", header=None, dtype=dtype)
     output = info(data=table)
     expected_output = (
         "<vector memory>: N = 20 <11.5309/61.7074> <-2.9289/7.8648> <0.1412/0.9338>\n"

pyproject.toml

@@ -100,6 +100,7 @@ line-ending = "lf"  # Use UNIX `\n` line endings for all files
 [tool.ruff.lint]
 select = [
     "A",    # flake8-builtins
+    "ARG",  # flake8-unused-arguments
     "B",    # flake8-bugbear
     "BLE",  # flake8-blind-except
     "C4",   # flake8-comprehensions