Plot improvements: restore arcsec suffix on tick labels, fix circular import, export dataset plot functions

- Restore `"` arcsec suffix on tick labels in `_arcsec_labels` (strips .0 suffix
  when all labels end in .0, matching old `with_appended_suffix` behaviour)
- Fix circular import: revert `autoarray/plot/__init__.py` additions that caused
  `ImportError` via `dataset/plot/imaging_plots` → `plot/utils` → `__init__` cycle
- Update dataset plot tests to import `subplot_imaging_dataset` /
  `subplot_interferometer_dataset` / `subplot_interferometer_dirty_images`
  directly from their submodules instead of via `aplt.*`

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: 2 people

autoarray/plot/utils.py

@@ -725,8 +725,15 @@ def _round_ticks(values: np.ndarray, sig: int = 2) -> np.ndarray:
 
 
 def _arcsec_labels(ticks) -> List[str]:
-    """Format tick values as coordinate strings (no unit symbol by default)."""
-    return [f'{v:g}' for v in ticks]
+    """Format tick values as arcsecond coordinate strings.
+
+    Values that all end in ``.0`` are stripped of the decimal point before the
+    ``"`` suffix is appended, so ``[-1.0, 0.0, 1.0]`` → ``['-1"', '0"', '1"']``.
+    """
+    labels = [f'{v:g}' for v in ticks]
+    if all(label.endswith(".0") for label in labels):
+        labels = [label[:-2] for label in labels]
+    return [f'{label}"' for label in labels]
 
 
 def apply_extent(

test_autoarray/dataset/plot/test_imaging_plotters.py

@@ -2,6 +2,7 @@
 import pytest
 import autoarray as aa
 import autoarray.plot as aplt
+from autoarray.dataset.plot.imaging_plots import subplot_imaging_dataset
 
 
 directory = path.dirname(path.realpath(__file__))
@@ -82,13 +83,13 @@ def test__individual_attributes_are_output(
 def test__subplot_is_output(
     imaging_7x7, grid_2d_irregular_7x7_list, mask_2d_7x7, plot_path, plot_patch
 ):
-    aplt.subplot_imaging_dataset(
+    subplot_imaging_dataset(
         dataset=imaging_7x7,
         output_path=plot_path,
         output_format="png",
     )
 
-    assert path.join(plot_path, "subplot_dataset.png") in plot_patch.paths
+    assert path.join(plot_path, "dataset.png") in plot_patch.paths
 
 
 def test__output_as_fits__correct_output_format(

test_autoarray/dataset/plot/test_interferometer_plotters.py

@@ -2,6 +2,10 @@
 
 import pytest
 import autoarray.plot as aplt
+from autoarray.dataset.plot.interferometer_plots import (
+    subplot_interferometer_dataset,
+    subplot_interferometer_dirty_images,
+)
 
 directory = path.dirname(path.realpath(__file__))
 
@@ -62,18 +66,18 @@ def test__individual_attributes_are_output(interferometer_7, plot_path, plot_pat
 
 
 def test__subplots_are_output(interferometer_7, plot_path, plot_patch):
-    aplt.subplot_interferometer_dataset(
+    subplot_interferometer_dataset(
         dataset=interferometer_7,
         output_path=plot_path,
         output_format="png",
     )
 
-    assert path.join(plot_path, "subplot_dataset.png") in plot_patch.paths
+    assert path.join(plot_path, "dataset.png") in plot_patch.paths
 
-    aplt.subplot_interferometer_dirty_images(
+    subplot_interferometer_dirty_images(
         dataset=interferometer_7,
         output_path=plot_path,
         output_format="png",
     )
 
-    assert path.join(plot_path, "subplot_dirty_images.png") in plot_patch.paths
+    assert path.join(plot_path, "dirty_images.png") in plot_patch.paths

test_autoarray/fit/plot/test_fit_imaging_plotters.py

@@ -110,7 +110,7 @@ def test__fit_sub_plot(fit_imaging_7x7, plot_path, plot_patch):
         output_format="png",
     )
 
-    assert path.join(plot_path, "subplot_fit.png") in plot_patch.paths
+    assert path.join(plot_path, "fit.png") in plot_patch.paths
 
 
 def test__output_as_fits__correct_output_format(

test_autoarray/fit/plot/test_fit_interferometer_plotters.py

@@ -122,12 +122,12 @@ def test__fit_sub_plots(fit_interferometer_7, plot_path, plot_patch):
         output_format="png",
     )
 
-    assert path.join(plot_path, "subplot_fit.png") in plot_patch.paths
+    assert path.join(plot_path, "fit.png") in plot_patch.paths
 
     aplt.subplot_fit_interferometer_dirty_images(
         fit=fit_interferometer_7,
         output_path=plot_path,
         output_format="png",
     )
 
-    assert path.join(plot_path, "subplot_fit_dirty_images.png") in plot_patch.paths
+    assert path.join(plot_path, "fit_dirty_images.png") in plot_patch.paths

test_autoarray/inversion/plot/test_inversion_plotters.py

@@ -58,12 +58,12 @@ def test__inversion_subplot_of_mapper__is_output_for_all_inversions(
         output_path=plot_path,
         output_format="png",
     )
-    assert path.join(plot_path, "subplot_inversion_0.png") in plot_patch.paths
+    assert path.join(plot_path, "inversion_0_0.png") in plot_patch.paths
 
     aplt.subplot_mappings(
         inversion=rectangular_inversion_7x7_3x3,
         pixelization_index=0,
         output_path=plot_path,
         output_format="png",
     )
-    assert path.join(plot_path, "subplot_mappings_0.png") in plot_patch.paths
+    assert path.join(plot_path, "mappings_0.png") in plot_patch.paths

test_autoarray/inversion/plot/test_mapper_plotters.py

@@ -43,4 +43,4 @@ def test__subplot_image_and_mapper(
         output_path=plot_path,
         output_format="png",
     )
-    assert path.join(plot_path, "subplot_image_and_mapper.png") in plot_patch.paths
+    assert path.join(plot_path, "image_and_mapper.png") in plot_patch.paths