From 00752e44ce0c0cfd0c673485d7d34c4807d9a60c Mon Sep 17 00:00:00 2001
From: Dongdong Tian <seisman.info@gmail.com>
Date: Tue, 7 Jan 2025 13:30:48 +0800
Subject: [PATCH] ruff: Ignore the B018 rule (useless expressions) in examples

---
 examples/gallery/images/rgb_image.py    | 2 +-
 examples/gallery/lines/linestrings.py   | 2 +-
 examples/gallery/maps/choropleth_map.py | 2 +-
 examples/tutorials/basics/plot.py       | 6 +++---
 pyproject.toml                          | 5 ++++-
 5 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/examples/gallery/images/rgb_image.py b/examples/gallery/images/rgb_image.py
index 56d7b9d2f70..8afb2c93e25 100644
--- a/examples/gallery/images/rgb_image.py
+++ b/examples/gallery/images/rgb_image.py
@@ -28,7 +28,7 @@
     # Subset to area of Lāhainā in EPSG:32604 coordinates
     image = img.rio.clip_box(minx=738000, maxx=755000, miny=2300000, maxy=2318000)
     image = image.load()  # Force loading the DataArray into memory
-image  # noqa: B018
+image
 
 # %%
 # Plot the RGB imagery:
diff --git a/examples/gallery/lines/linestrings.py b/examples/gallery/lines/linestrings.py
index d3793645c84..18f94502f16 100644
--- a/examples/gallery/lines/linestrings.py
+++ b/examples/gallery/lines/linestrings.py
@@ -25,7 +25,7 @@
 
 # Convert object to EPSG 4326 coordinate system
 gdf = gdf.to_crs("EPSG:4326")
-print(gdf.head())
+gdf.head()
 
 # %%
 fig = pygmt.Figure()
diff --git a/examples/gallery/maps/choropleth_map.py b/examples/gallery/maps/choropleth_map.py
index 19376f3c61c..4bd70dc3de6 100644
--- a/examples/gallery/maps/choropleth_map.py
+++ b/examples/gallery/maps/choropleth_map.py
@@ -20,7 +20,7 @@
 
 # Read the example dataset provided by geodatasets.
 gdf = gpd.read_file(geodatasets.get_path("geoda airbnb"))
-print(gdf)
+gdf
 
 # %%
 fig = pygmt.Figure()
diff --git a/examples/tutorials/basics/plot.py b/examples/tutorials/basics/plot.py
index babfb60d771..42cb8aad5ae 100644
--- a/examples/tutorials/basics/plot.py
+++ b/examples/tutorials/basics/plot.py
@@ -18,7 +18,9 @@
 # The data are loaded as a :class:`pandas.DataFrame`.
 
 data = pygmt.datasets.load_sample_data(name="japan_quakes")
+data.head()
 
+# %%
 # Set the region for the plot to be slightly larger than the data bounds.
 region = [
     data.longitude.min() - 1,
@@ -26,9 +28,7 @@
     data.latitude.min() - 1,
     data.latitude.max() + 1,
 ]
-
-print(region)
-print(data.head())
+region
 
 # %%
 # We'll use the :meth:`pygmt.Figure.plot` method to plot circles on the
diff --git a/pyproject.toml b/pyproject.toml
index 9af670df32c..61c6a541fef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -160,7 +160,10 @@ known-third-party = ["pygmt"]
 [tool.ruff.lint.per-file-ignores]
 "__init__.py" = ["F401"]  # Ignore `F401` (unused-import) in all `__init__.py` files
 "*/tests/test_*.py" = ["S101"]  # Ignore `S101` (use of assert) in all tests files
-"examples/**/*.py" = ["T201"]  # Allow `print` in examples
+"examples/**/*.py" = [ # Ignore rules in examples
+    "B018",  # Allow useless expressions in Jupyter Notebooks
+    "T201",  # Allow `print` statements
+]
 
 [tool.ruff.lint.pycodestyle]
 max-doc-length = 88