From 3ce4b8a26c69098545a379c39f0f31bee9ddd0f4 Mon Sep 17 00:00:00 2001
From: Erik Paskalev <erik.paskalev@ru.nl>
Date: Fri, 27 Jun 2025 03:56:42 +0300
Subject: [PATCH 1/4] fix: add_hline not working with make_subplots if not
 populated

---
 plotly/basedatatypes.py                       |  2 +
 .../test_add_hline_empty_subplots.py          | 29 ++++++++++++
 .../test_hline_subplots_bug.py                | 46 +++++++++++++++++++
 3 files changed, 77 insertions(+)
 create mode 100644 tests/test_core/test_shapes/test_add_hline_empty_subplots.py
 create mode 100644 tests/test_regression/test_hline_subplots_bug.py

diff --git a/plotly/basedatatypes.py b/plotly/basedatatypes.py
index 72f4cd25ca..e3545914b3 100644
--- a/plotly/basedatatypes.py
+++ b/plotly/basedatatypes.py
@@ -4093,6 +4093,8 @@ def _process_multiple_axis_spanning_shapes(
         augmented_annotation = shapeannotation.axis_spanning_shape_annotation(
             annotation, shape_type, shape_args, annotation_kwargs
         )
+        if exclude_empty_subplots and len(self.data) == 0:
+            exclude_empty_subplots = False
         self.add_shape(
             row=row,
             col=col,
diff --git a/tests/test_core/test_shapes/test_add_hline_empty_subplots.py b/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
new file mode 100644
index 0000000000..6da853120e
--- /dev/null
+++ b/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
@@ -0,0 +1,29 @@
+import pytest
+import plotly.graph_objects as go
+from plotly.subplots import make_subplots
+
+def test_add_hline_on_empty_subplots_creates_shape_default():
+    fig = make_subplots(rows=1, cols=1)
+    fig.add_hline(y=0.25)
+    shapes = fig.layout.shapes
+    assert len(shapes) == 1, "Expected one shape for the horizontal line"
+    shape = shapes[0]
+    assert shape.type == 'line'
+    assert shape.y0 == 0.25 and shape.y1 == 0.25
+    # xref and yref should be set
+    assert getattr(shape, 'xref', None) is not None
+    assert getattr(shape, 'yref', None) is not None
+
+@pytest.mark.parametrize("row, col", [(None, None), (1, 1)])
+def test_add_hline_with_explicit_row_col_on_empty_subplots(row, col):
+    fig = make_subplots(rows=1, cols=1)
+    # explicit row/col
+    fig.add_hline(y=0.5, row=row, col=col)
+    shapes = fig.layout.shapes
+    assert len(shapes) == 1, f"Expected one shape when row={row}, col={col}"
+    shape = shapes[0]
+    assert shape.y0 == 0.5 and shape.y1 == 0.5
+    assert shape.type == 'line'
+    # ensure references default
+    assert shape.xref is not None
+    assert shape.yref is not None
\ No newline at end of file
diff --git a/tests/test_regression/test_hline_subplots_bug.py b/tests/test_regression/test_hline_subplots_bug.py
new file mode 100644
index 0000000000..2a853f9bac
--- /dev/null
+++ b/tests/test_regression/test_hline_subplots_bug.py
@@ -0,0 +1,46 @@
+import pytest
+import plotly.graph_objects as go
+from plotly.subplots import make_subplots
+
+
+def _apply_line(fig, orientation):
+    if orientation == "h":
+        fig.add_hline(y=0.5)
+    elif orientation == "v":
+        fig.add_vline(x=0.3)
+    else:
+        raise ValueError("orientation must be 'h' or 'v'")
+
+
+@pytest.mark.parametrize("orientation,kwargs", [
+    ("h", dict(line_coord_key="y0", coord=0.5, span_keys=("x0", "x1"), span_vals=(0, 1))),
+    ("v", dict(line_coord_key="x0", coord=0.3, span_keys=("y0", "y1"), span_vals=(0, 1))),
+])
+@pytest.mark.parametrize("constructor", [
+    pytest.param(lambda: go.Figure(), id="plain-figure"),
+    pytest.param(lambda: make_subplots(rows=1, cols=1), id="make_subplots"),
+])
+
+def test_add_line_presence(orientation, kwargs, constructor):
+    """Both add_hline and add_vline must create a shape, even on empty subplots."""
+    fig = constructor()
+
+    assert len(fig.data) == 0
+    assert len(fig.layout.shapes) == 0
+
+    _apply_line(fig, orientation)
+
+    # exactly one shape expected regardless of constructor and orientation
+    assert len(fig.layout.shapes) == 1, (
+        f"add_{orientation}line must create a shape on an empty figure; "
+        "currently fails for make_subplots."
+    )
+
+    shape = fig.layout.shapes[0]
+    # validate coordinate of line
+    assert pytest.approx(shape[kwargs["line_coord_key"]]) == kwargs["coord"]
+    # validate full-span of the other axis
+    span_key0, span_key1 = kwargs["span_keys"]
+    expected0, expected1 = kwargs["span_vals"]
+    assert shape[span_key0] == expected0
+    assert shape[span_key1] == expected1
\ No newline at end of file

From b92a744e3dd48c19aaf322366097908d351bdb1b Mon Sep 17 00:00:00 2001
From: Erik Paskalev <erik.paskalev@ru.nl>
Date: Fri, 27 Jun 2025 13:52:16 +0300
Subject: [PATCH 2/4] Format: Update formatting to adhere to check

---
 plotly/graph_objs/layout/template/_layout.py                  | 1 -
 plotly/graph_objs/layout/template/data/_bar.py                | 1 -
 plotly/graph_objs/layout/template/data/_barpolar.py           | 1 -
 plotly/graph_objs/layout/template/data/_box.py                | 1 -
 plotly/graph_objs/layout/template/data/_candlestick.py        | 1 -
 plotly/graph_objs/layout/template/data/_carpet.py             | 1 -
 plotly/graph_objs/layout/template/data/_choropleth.py         | 1 -
 plotly/graph_objs/layout/template/data/_choroplethmap.py      | 1 -
 plotly/graph_objs/layout/template/data/_choroplethmapbox.py   | 1 -
 plotly/graph_objs/layout/template/data/_cone.py               | 1 -
 plotly/graph_objs/layout/template/data/_contour.py            | 1 -
 plotly/graph_objs/layout/template/data/_contourcarpet.py      | 1 -
 plotly/graph_objs/layout/template/data/_densitymap.py         | 1 -
 plotly/graph_objs/layout/template/data/_densitymapbox.py      | 1 -
 plotly/graph_objs/layout/template/data/_funnel.py             | 1 -
 plotly/graph_objs/layout/template/data/_funnelarea.py         | 1 -
 plotly/graph_objs/layout/template/data/_heatmap.py            | 1 -
 plotly/graph_objs/layout/template/data/_histogram.py          | 1 -
 plotly/graph_objs/layout/template/data/_histogram2d.py        | 1 -
 plotly/graph_objs/layout/template/data/_histogram2dcontour.py | 1 -
 plotly/graph_objs/layout/template/data/_icicle.py             | 1 -
 plotly/graph_objs/layout/template/data/_image.py              | 1 -
 plotly/graph_objs/layout/template/data/_indicator.py          | 1 -
 plotly/graph_objs/layout/template/data/_isosurface.py         | 1 -
 plotly/graph_objs/layout/template/data/_mesh3d.py             | 1 -
 plotly/graph_objs/layout/template/data/_ohlc.py               | 1 -
 plotly/graph_objs/layout/template/data/_parcats.py            | 1 -
 plotly/graph_objs/layout/template/data/_parcoords.py          | 1 -
 plotly/graph_objs/layout/template/data/_pie.py                | 1 -
 plotly/graph_objs/layout/template/data/_sankey.py             | 1 -
 plotly/graph_objs/layout/template/data/_scatter.py            | 1 -
 plotly/graph_objs/layout/template/data/_scatter3d.py          | 1 -
 plotly/graph_objs/layout/template/data/_scattercarpet.py      | 1 -
 plotly/graph_objs/layout/template/data/_scattergeo.py         | 1 -
 plotly/graph_objs/layout/template/data/_scattergl.py          | 1 -
 plotly/graph_objs/layout/template/data/_scattermap.py         | 1 -
 plotly/graph_objs/layout/template/data/_scattermapbox.py      | 1 -
 plotly/graph_objs/layout/template/data/_scatterpolar.py       | 1 -
 plotly/graph_objs/layout/template/data/_scatterpolargl.py     | 1 -
 plotly/graph_objs/layout/template/data/_scattersmith.py       | 1 -
 plotly/graph_objs/layout/template/data/_scatterternary.py     | 1 -
 plotly/graph_objs/layout/template/data/_splom.py              | 1 -
 plotly/graph_objs/layout/template/data/_streamtube.py         | 1 -
 plotly/graph_objs/layout/template/data/_sunburst.py           | 1 -
 plotly/graph_objs/layout/template/data/_surface.py            | 1 -
 plotly/graph_objs/layout/template/data/_table.py              | 1 -
 plotly/graph_objs/layout/template/data/_treemap.py            | 1 -
 plotly/graph_objs/layout/template/data/_violin.py             | 1 -
 plotly/graph_objs/layout/template/data/_volume.py             | 1 -
 plotly/graph_objs/layout/template/data/_waterfall.py          | 1 -
 tests/test_core/test_shapes/test_add_hline_empty_subplots.py  | 1 -
 51 files changed, 51 deletions(-)

diff --git a/plotly/graph_objs/layout/template/_layout.py b/plotly/graph_objs/layout/template/_layout.py
index 058b60b807..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/_layout.py
+++ b/plotly/graph_objs/layout/template/_layout.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Layout
diff --git a/plotly/graph_objs/layout/template/data/_bar.py b/plotly/graph_objs/layout/template/data/_bar.py
index 5a800e6408..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_bar.py
+++ b/plotly/graph_objs/layout/template/data/_bar.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Bar
diff --git a/plotly/graph_objs/layout/template/data/_barpolar.py b/plotly/graph_objs/layout/template/data/_barpolar.py
index 18abed8bbb..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_barpolar.py
+++ b/plotly/graph_objs/layout/template/data/_barpolar.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Barpolar
diff --git a/plotly/graph_objs/layout/template/data/_box.py b/plotly/graph_objs/layout/template/data/_box.py
index ffdd1d9213..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_box.py
+++ b/plotly/graph_objs/layout/template/data/_box.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Box
diff --git a/plotly/graph_objs/layout/template/data/_candlestick.py b/plotly/graph_objs/layout/template/data/_candlestick.py
index 5d11b44859..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_candlestick.py
+++ b/plotly/graph_objs/layout/template/data/_candlestick.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Candlestick
diff --git a/plotly/graph_objs/layout/template/data/_carpet.py b/plotly/graph_objs/layout/template/data/_carpet.py
index b923d73904..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_carpet.py
+++ b/plotly/graph_objs/layout/template/data/_carpet.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Carpet
diff --git a/plotly/graph_objs/layout/template/data/_choropleth.py b/plotly/graph_objs/layout/template/data/_choropleth.py
index 733e12709c..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_choropleth.py
+++ b/plotly/graph_objs/layout/template/data/_choropleth.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Choropleth
diff --git a/plotly/graph_objs/layout/template/data/_choroplethmap.py b/plotly/graph_objs/layout/template/data/_choroplethmap.py
index 855102a43f..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_choroplethmap.py
+++ b/plotly/graph_objs/layout/template/data/_choroplethmap.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Choroplethmap
diff --git a/plotly/graph_objs/layout/template/data/_choroplethmapbox.py b/plotly/graph_objs/layout/template/data/_choroplethmapbox.py
index 220b93564e..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_choroplethmapbox.py
+++ b/plotly/graph_objs/layout/template/data/_choroplethmapbox.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Choroplethmapbox
diff --git a/plotly/graph_objs/layout/template/data/_cone.py b/plotly/graph_objs/layout/template/data/_cone.py
index 7a284527a8..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_cone.py
+++ b/plotly/graph_objs/layout/template/data/_cone.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Cone
diff --git a/plotly/graph_objs/layout/template/data/_contour.py b/plotly/graph_objs/layout/template/data/_contour.py
index e474909a4d..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_contour.py
+++ b/plotly/graph_objs/layout/template/data/_contour.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Contour
diff --git a/plotly/graph_objs/layout/template/data/_contourcarpet.py b/plotly/graph_objs/layout/template/data/_contourcarpet.py
index 6240faf510..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_contourcarpet.py
+++ b/plotly/graph_objs/layout/template/data/_contourcarpet.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Contourcarpet
diff --git a/plotly/graph_objs/layout/template/data/_densitymap.py b/plotly/graph_objs/layout/template/data/_densitymap.py
index c73e108c7c..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_densitymap.py
+++ b/plotly/graph_objs/layout/template/data/_densitymap.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Densitymap
diff --git a/plotly/graph_objs/layout/template/data/_densitymapbox.py b/plotly/graph_objs/layout/template/data/_densitymapbox.py
index d655b21ab3..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_densitymapbox.py
+++ b/plotly/graph_objs/layout/template/data/_densitymapbox.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Densitymapbox
diff --git a/plotly/graph_objs/layout/template/data/_funnel.py b/plotly/graph_objs/layout/template/data/_funnel.py
index 70e2ba74d4..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_funnel.py
+++ b/plotly/graph_objs/layout/template/data/_funnel.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Funnel
diff --git a/plotly/graph_objs/layout/template/data/_funnelarea.py b/plotly/graph_objs/layout/template/data/_funnelarea.py
index 242d0fcc96..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_funnelarea.py
+++ b/plotly/graph_objs/layout/template/data/_funnelarea.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Funnelarea
diff --git a/plotly/graph_objs/layout/template/data/_heatmap.py b/plotly/graph_objs/layout/template/data/_heatmap.py
index 6098ee83e7..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_heatmap.py
+++ b/plotly/graph_objs/layout/template/data/_heatmap.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Heatmap
diff --git a/plotly/graph_objs/layout/template/data/_histogram.py b/plotly/graph_objs/layout/template/data/_histogram.py
index 7ba4c6df2f..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_histogram.py
+++ b/plotly/graph_objs/layout/template/data/_histogram.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Histogram
diff --git a/plotly/graph_objs/layout/template/data/_histogram2d.py b/plotly/graph_objs/layout/template/data/_histogram2d.py
index 710f7f9929..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_histogram2d.py
+++ b/plotly/graph_objs/layout/template/data/_histogram2d.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Histogram2d
diff --git a/plotly/graph_objs/layout/template/data/_histogram2dcontour.py b/plotly/graph_objs/layout/template/data/_histogram2dcontour.py
index 94af41aa92..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_histogram2dcontour.py
+++ b/plotly/graph_objs/layout/template/data/_histogram2dcontour.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Histogram2dContour
diff --git a/plotly/graph_objs/layout/template/data/_icicle.py b/plotly/graph_objs/layout/template/data/_icicle.py
index 6749cbe60a..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_icicle.py
+++ b/plotly/graph_objs/layout/template/data/_icicle.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Icicle
diff --git a/plotly/graph_objs/layout/template/data/_image.py b/plotly/graph_objs/layout/template/data/_image.py
index 828920ac69..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_image.py
+++ b/plotly/graph_objs/layout/template/data/_image.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Image
diff --git a/plotly/graph_objs/layout/template/data/_indicator.py b/plotly/graph_objs/layout/template/data/_indicator.py
index a5a488f8bb..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_indicator.py
+++ b/plotly/graph_objs/layout/template/data/_indicator.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Indicator
diff --git a/plotly/graph_objs/layout/template/data/_isosurface.py b/plotly/graph_objs/layout/template/data/_isosurface.py
index 5a7885ab64..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_isosurface.py
+++ b/plotly/graph_objs/layout/template/data/_isosurface.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Isosurface
diff --git a/plotly/graph_objs/layout/template/data/_mesh3d.py b/plotly/graph_objs/layout/template/data/_mesh3d.py
index 2172a23bd4..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_mesh3d.py
+++ b/plotly/graph_objs/layout/template/data/_mesh3d.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Mesh3d
diff --git a/plotly/graph_objs/layout/template/data/_ohlc.py b/plotly/graph_objs/layout/template/data/_ohlc.py
index d3f857428c..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_ohlc.py
+++ b/plotly/graph_objs/layout/template/data/_ohlc.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Ohlc
diff --git a/plotly/graph_objs/layout/template/data/_parcats.py b/plotly/graph_objs/layout/template/data/_parcats.py
index 9b0290bcce..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_parcats.py
+++ b/plotly/graph_objs/layout/template/data/_parcats.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Parcats
diff --git a/plotly/graph_objs/layout/template/data/_parcoords.py b/plotly/graph_objs/layout/template/data/_parcoords.py
index ccf5629c54..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_parcoords.py
+++ b/plotly/graph_objs/layout/template/data/_parcoords.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Parcoords
diff --git a/plotly/graph_objs/layout/template/data/_pie.py b/plotly/graph_objs/layout/template/data/_pie.py
index 0625fd2888..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_pie.py
+++ b/plotly/graph_objs/layout/template/data/_pie.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Pie
diff --git a/plotly/graph_objs/layout/template/data/_sankey.py b/plotly/graph_objs/layout/template/data/_sankey.py
index b572f657ce..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_sankey.py
+++ b/plotly/graph_objs/layout/template/data/_sankey.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Sankey
diff --git a/plotly/graph_objs/layout/template/data/_scatter.py b/plotly/graph_objs/layout/template/data/_scatter.py
index afcfab30af..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scatter.py
+++ b/plotly/graph_objs/layout/template/data/_scatter.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scatter
diff --git a/plotly/graph_objs/layout/template/data/_scatter3d.py b/plotly/graph_objs/layout/template/data/_scatter3d.py
index 93146220e3..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scatter3d.py
+++ b/plotly/graph_objs/layout/template/data/_scatter3d.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scatter3d
diff --git a/plotly/graph_objs/layout/template/data/_scattercarpet.py b/plotly/graph_objs/layout/template/data/_scattercarpet.py
index 26d87ca7c1..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scattercarpet.py
+++ b/plotly/graph_objs/layout/template/data/_scattercarpet.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scattercarpet
diff --git a/plotly/graph_objs/layout/template/data/_scattergeo.py b/plotly/graph_objs/layout/template/data/_scattergeo.py
index 34308e1a08..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scattergeo.py
+++ b/plotly/graph_objs/layout/template/data/_scattergeo.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scattergeo
diff --git a/plotly/graph_objs/layout/template/data/_scattergl.py b/plotly/graph_objs/layout/template/data/_scattergl.py
index 30bd3712b8..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scattergl.py
+++ b/plotly/graph_objs/layout/template/data/_scattergl.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scattergl
diff --git a/plotly/graph_objs/layout/template/data/_scattermap.py b/plotly/graph_objs/layout/template/data/_scattermap.py
index 5a494e2320..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scattermap.py
+++ b/plotly/graph_objs/layout/template/data/_scattermap.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scattermap
diff --git a/plotly/graph_objs/layout/template/data/_scattermapbox.py b/plotly/graph_objs/layout/template/data/_scattermapbox.py
index 6c3333aa94..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scattermapbox.py
+++ b/plotly/graph_objs/layout/template/data/_scattermapbox.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scattermapbox
diff --git a/plotly/graph_objs/layout/template/data/_scatterpolar.py b/plotly/graph_objs/layout/template/data/_scatterpolar.py
index e1417b2381..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scatterpolar.py
+++ b/plotly/graph_objs/layout/template/data/_scatterpolar.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scatterpolar
diff --git a/plotly/graph_objs/layout/template/data/_scatterpolargl.py b/plotly/graph_objs/layout/template/data/_scatterpolargl.py
index 60b023a581..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scatterpolargl.py
+++ b/plotly/graph_objs/layout/template/data/_scatterpolargl.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scatterpolargl
diff --git a/plotly/graph_objs/layout/template/data/_scattersmith.py b/plotly/graph_objs/layout/template/data/_scattersmith.py
index e2dcf41bd0..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scattersmith.py
+++ b/plotly/graph_objs/layout/template/data/_scattersmith.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scattersmith
diff --git a/plotly/graph_objs/layout/template/data/_scatterternary.py b/plotly/graph_objs/layout/template/data/_scatterternary.py
index 2221eadd54..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_scatterternary.py
+++ b/plotly/graph_objs/layout/template/data/_scatterternary.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Scatterternary
diff --git a/plotly/graph_objs/layout/template/data/_splom.py b/plotly/graph_objs/layout/template/data/_splom.py
index 0909cdfd9d..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_splom.py
+++ b/plotly/graph_objs/layout/template/data/_splom.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Splom
diff --git a/plotly/graph_objs/layout/template/data/_streamtube.py b/plotly/graph_objs/layout/template/data/_streamtube.py
index 8b23c3161c..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_streamtube.py
+++ b/plotly/graph_objs/layout/template/data/_streamtube.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Streamtube
diff --git a/plotly/graph_objs/layout/template/data/_sunburst.py b/plotly/graph_objs/layout/template/data/_sunburst.py
index 1b9511c7d5..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_sunburst.py
+++ b/plotly/graph_objs/layout/template/data/_sunburst.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Sunburst
diff --git a/plotly/graph_objs/layout/template/data/_surface.py b/plotly/graph_objs/layout/template/data/_surface.py
index cfaa55d738..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_surface.py
+++ b/plotly/graph_objs/layout/template/data/_surface.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Surface
diff --git a/plotly/graph_objs/layout/template/data/_table.py b/plotly/graph_objs/layout/template/data/_table.py
index 2b6d4ad1e5..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_table.py
+++ b/plotly/graph_objs/layout/template/data/_table.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Table
diff --git a/plotly/graph_objs/layout/template/data/_treemap.py b/plotly/graph_objs/layout/template/data/_treemap.py
index 5c648e7108..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_treemap.py
+++ b/plotly/graph_objs/layout/template/data/_treemap.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Treemap
diff --git a/plotly/graph_objs/layout/template/data/_violin.py b/plotly/graph_objs/layout/template/data/_violin.py
index 23221b6677..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_violin.py
+++ b/plotly/graph_objs/layout/template/data/_violin.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Violin
diff --git a/plotly/graph_objs/layout/template/data/_volume.py b/plotly/graph_objs/layout/template/data/_volume.py
index 1128580ca0..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_volume.py
+++ b/plotly/graph_objs/layout/template/data/_volume.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Volume
diff --git a/plotly/graph_objs/layout/template/data/_waterfall.py b/plotly/graph_objs/layout/template/data/_waterfall.py
index c45e7852a2..e69de29bb2 100644
--- a/plotly/graph_objs/layout/template/data/_waterfall.py
+++ b/plotly/graph_objs/layout/template/data/_waterfall.py
@@ -1 +0,0 @@
-from plotly.graph_objs import Waterfall
diff --git a/tests/test_core/test_shapes/test_add_hline_empty_subplots.py b/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
index 6da853120e..ca8f232c64 100644
--- a/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
+++ b/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
@@ -1,5 +1,4 @@
 import pytest
-import plotly.graph_objects as go
 from plotly.subplots import make_subplots
 
 def test_add_hline_on_empty_subplots_creates_shape_default():

From f8432ee9ec4d9c9175d2ef5de30c018840ad81cd Mon Sep 17 00:00:00 2001
From: Erik Paskalev <erik.paskalev@ru.nl>
Date: Fri, 27 Jun 2025 14:18:36 +0300
Subject: [PATCH 3/4] Format: reformat the a new unit tests

---
 .../test_add_hline_empty_subplots.py          | 12 ++++---
 .../test_hline_subplots_bug.py                | 35 +++++++++++++------
 2 files changed, 32 insertions(+), 15 deletions(-)

diff --git a/tests/test_core/test_shapes/test_add_hline_empty_subplots.py b/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
index ca8f232c64..60396de3d9 100644
--- a/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
+++ b/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
@@ -1,17 +1,19 @@
 import pytest
 from plotly.subplots import make_subplots
 
+
 def test_add_hline_on_empty_subplots_creates_shape_default():
     fig = make_subplots(rows=1, cols=1)
     fig.add_hline(y=0.25)
     shapes = fig.layout.shapes
     assert len(shapes) == 1, "Expected one shape for the horizontal line"
     shape = shapes[0]
-    assert shape.type == 'line'
+    assert shape.type == "line"
     assert shape.y0 == 0.25 and shape.y1 == 0.25
     # xref and yref should be set
-    assert getattr(shape, 'xref', None) is not None
-    assert getattr(shape, 'yref', None) is not None
+    assert getattr(shape, "xref", None) is not None
+    assert getattr(shape, "yref", None) is not None
+
 
 @pytest.mark.parametrize("row, col", [(None, None), (1, 1)])
 def test_add_hline_with_explicit_row_col_on_empty_subplots(row, col):
@@ -22,7 +24,7 @@ def test_add_hline_with_explicit_row_col_on_empty_subplots(row, col):
     assert len(shapes) == 1, f"Expected one shape when row={row}, col={col}"
     shape = shapes[0]
     assert shape.y0 == 0.5 and shape.y1 == 0.5
-    assert shape.type == 'line'
+    assert shape.type == "line"
     # ensure references default
     assert shape.xref is not None
-    assert shape.yref is not None
\ No newline at end of file
+    assert shape.yref is not None
diff --git a/tests/test_regression/test_hline_subplots_bug.py b/tests/test_regression/test_hline_subplots_bug.py
index 2a853f9bac..8d00b2cd15 100644
--- a/tests/test_regression/test_hline_subplots_bug.py
+++ b/tests/test_regression/test_hline_subplots_bug.py
@@ -12,15 +12,30 @@ def _apply_line(fig, orientation):
         raise ValueError("orientation must be 'h' or 'v'")
 
 
-@pytest.mark.parametrize("orientation,kwargs", [
-    ("h", dict(line_coord_key="y0", coord=0.5, span_keys=("x0", "x1"), span_vals=(0, 1))),
-    ("v", dict(line_coord_key="x0", coord=0.3, span_keys=("y0", "y1"), span_vals=(0, 1))),
-])
-@pytest.mark.parametrize("constructor", [
-    pytest.param(lambda: go.Figure(), id="plain-figure"),
-    pytest.param(lambda: make_subplots(rows=1, cols=1), id="make_subplots"),
-])
-
+@pytest.mark.parametrize(
+    "orientation,kwargs",
+    [
+        (
+            "h",
+            dict(
+                line_coord_key="y0", coord=0.5, span_keys=("x0", "x1"), span_vals=(0, 1)
+            ),
+        ),
+        (
+            "v",
+            dict(
+                line_coord_key="x0", coord=0.3, span_keys=("y0", "y1"), span_vals=(0, 1)
+            ),
+        ),
+    ],
+)
+@pytest.mark.parametrize(
+    "constructor",
+    [
+        pytest.param(lambda: go.Figure(), id="plain-figure"),
+        pytest.param(lambda: make_subplots(rows=1, cols=1), id="make_subplots"),
+    ],
+)
 def test_add_line_presence(orientation, kwargs, constructor):
     """Both add_hline and add_vline must create a shape, even on empty subplots."""
     fig = constructor()
@@ -43,4 +58,4 @@ def test_add_line_presence(orientation, kwargs, constructor):
     span_key0, span_key1 = kwargs["span_keys"]
     expected0, expected1 = kwargs["span_vals"]
     assert shape[span_key0] == expected0
-    assert shape[span_key1] == expected1
\ No newline at end of file
+    assert shape[span_key1] == expected1

From 35b344b26da7713d42de7e7192685f903eb73192 Mon Sep 17 00:00:00 2001
From: Erik Paskalev <erik.paskalev@ru.nl>
Date: Fri, 27 Jun 2025 14:42:57 +0300
Subject: [PATCH 4/4] Revert "Format: Update formatting to adhere to check" to
 fix build errors

This reverts commit b92a744e3dd48c19aaf322366097908d351bdb1b.
---
 plotly/graph_objs/layout/template/_layout.py                  | 1 +
 plotly/graph_objs/layout/template/data/_bar.py                | 1 +
 plotly/graph_objs/layout/template/data/_barpolar.py           | 1 +
 plotly/graph_objs/layout/template/data/_box.py                | 1 +
 plotly/graph_objs/layout/template/data/_candlestick.py        | 1 +
 plotly/graph_objs/layout/template/data/_carpet.py             | 1 +
 plotly/graph_objs/layout/template/data/_choropleth.py         | 1 +
 plotly/graph_objs/layout/template/data/_choroplethmap.py      | 1 +
 plotly/graph_objs/layout/template/data/_choroplethmapbox.py   | 1 +
 plotly/graph_objs/layout/template/data/_cone.py               | 1 +
 plotly/graph_objs/layout/template/data/_contour.py            | 1 +
 plotly/graph_objs/layout/template/data/_contourcarpet.py      | 1 +
 plotly/graph_objs/layout/template/data/_densitymap.py         | 1 +
 plotly/graph_objs/layout/template/data/_densitymapbox.py      | 1 +
 plotly/graph_objs/layout/template/data/_funnel.py             | 1 +
 plotly/graph_objs/layout/template/data/_funnelarea.py         | 1 +
 plotly/graph_objs/layout/template/data/_heatmap.py            | 1 +
 plotly/graph_objs/layout/template/data/_histogram.py          | 1 +
 plotly/graph_objs/layout/template/data/_histogram2d.py        | 1 +
 plotly/graph_objs/layout/template/data/_histogram2dcontour.py | 1 +
 plotly/graph_objs/layout/template/data/_icicle.py             | 1 +
 plotly/graph_objs/layout/template/data/_image.py              | 1 +
 plotly/graph_objs/layout/template/data/_indicator.py          | 1 +
 plotly/graph_objs/layout/template/data/_isosurface.py         | 1 +
 plotly/graph_objs/layout/template/data/_mesh3d.py             | 1 +
 plotly/graph_objs/layout/template/data/_ohlc.py               | 1 +
 plotly/graph_objs/layout/template/data/_parcats.py            | 1 +
 plotly/graph_objs/layout/template/data/_parcoords.py          | 1 +
 plotly/graph_objs/layout/template/data/_pie.py                | 1 +
 plotly/graph_objs/layout/template/data/_sankey.py             | 1 +
 plotly/graph_objs/layout/template/data/_scatter.py            | 1 +
 plotly/graph_objs/layout/template/data/_scatter3d.py          | 1 +
 plotly/graph_objs/layout/template/data/_scattercarpet.py      | 1 +
 plotly/graph_objs/layout/template/data/_scattergeo.py         | 1 +
 plotly/graph_objs/layout/template/data/_scattergl.py          | 1 +
 plotly/graph_objs/layout/template/data/_scattermap.py         | 1 +
 plotly/graph_objs/layout/template/data/_scattermapbox.py      | 1 +
 plotly/graph_objs/layout/template/data/_scatterpolar.py       | 1 +
 plotly/graph_objs/layout/template/data/_scatterpolargl.py     | 1 +
 plotly/graph_objs/layout/template/data/_scattersmith.py       | 1 +
 plotly/graph_objs/layout/template/data/_scatterternary.py     | 1 +
 plotly/graph_objs/layout/template/data/_splom.py              | 1 +
 plotly/graph_objs/layout/template/data/_streamtube.py         | 1 +
 plotly/graph_objs/layout/template/data/_sunburst.py           | 1 +
 plotly/graph_objs/layout/template/data/_surface.py            | 1 +
 plotly/graph_objs/layout/template/data/_table.py              | 1 +
 plotly/graph_objs/layout/template/data/_treemap.py            | 1 +
 plotly/graph_objs/layout/template/data/_violin.py             | 1 +
 plotly/graph_objs/layout/template/data/_volume.py             | 1 +
 plotly/graph_objs/layout/template/data/_waterfall.py          | 1 +
 tests/test_core/test_shapes/test_add_hline_empty_subplots.py  | 1 +
 51 files changed, 51 insertions(+)

diff --git a/plotly/graph_objs/layout/template/_layout.py b/plotly/graph_objs/layout/template/_layout.py
index e69de29bb2..058b60b807 100644
--- a/plotly/graph_objs/layout/template/_layout.py
+++ b/plotly/graph_objs/layout/template/_layout.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Layout
diff --git a/plotly/graph_objs/layout/template/data/_bar.py b/plotly/graph_objs/layout/template/data/_bar.py
index e69de29bb2..5a800e6408 100644
--- a/plotly/graph_objs/layout/template/data/_bar.py
+++ b/plotly/graph_objs/layout/template/data/_bar.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Bar
diff --git a/plotly/graph_objs/layout/template/data/_barpolar.py b/plotly/graph_objs/layout/template/data/_barpolar.py
index e69de29bb2..18abed8bbb 100644
--- a/plotly/graph_objs/layout/template/data/_barpolar.py
+++ b/plotly/graph_objs/layout/template/data/_barpolar.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Barpolar
diff --git a/plotly/graph_objs/layout/template/data/_box.py b/plotly/graph_objs/layout/template/data/_box.py
index e69de29bb2..ffdd1d9213 100644
--- a/plotly/graph_objs/layout/template/data/_box.py
+++ b/plotly/graph_objs/layout/template/data/_box.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Box
diff --git a/plotly/graph_objs/layout/template/data/_candlestick.py b/plotly/graph_objs/layout/template/data/_candlestick.py
index e69de29bb2..5d11b44859 100644
--- a/plotly/graph_objs/layout/template/data/_candlestick.py
+++ b/plotly/graph_objs/layout/template/data/_candlestick.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Candlestick
diff --git a/plotly/graph_objs/layout/template/data/_carpet.py b/plotly/graph_objs/layout/template/data/_carpet.py
index e69de29bb2..b923d73904 100644
--- a/plotly/graph_objs/layout/template/data/_carpet.py
+++ b/plotly/graph_objs/layout/template/data/_carpet.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Carpet
diff --git a/plotly/graph_objs/layout/template/data/_choropleth.py b/plotly/graph_objs/layout/template/data/_choropleth.py
index e69de29bb2..733e12709c 100644
--- a/plotly/graph_objs/layout/template/data/_choropleth.py
+++ b/plotly/graph_objs/layout/template/data/_choropleth.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Choropleth
diff --git a/plotly/graph_objs/layout/template/data/_choroplethmap.py b/plotly/graph_objs/layout/template/data/_choroplethmap.py
index e69de29bb2..855102a43f 100644
--- a/plotly/graph_objs/layout/template/data/_choroplethmap.py
+++ b/plotly/graph_objs/layout/template/data/_choroplethmap.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Choroplethmap
diff --git a/plotly/graph_objs/layout/template/data/_choroplethmapbox.py b/plotly/graph_objs/layout/template/data/_choroplethmapbox.py
index e69de29bb2..220b93564e 100644
--- a/plotly/graph_objs/layout/template/data/_choroplethmapbox.py
+++ b/plotly/graph_objs/layout/template/data/_choroplethmapbox.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Choroplethmapbox
diff --git a/plotly/graph_objs/layout/template/data/_cone.py b/plotly/graph_objs/layout/template/data/_cone.py
index e69de29bb2..7a284527a8 100644
--- a/plotly/graph_objs/layout/template/data/_cone.py
+++ b/plotly/graph_objs/layout/template/data/_cone.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Cone
diff --git a/plotly/graph_objs/layout/template/data/_contour.py b/plotly/graph_objs/layout/template/data/_contour.py
index e69de29bb2..e474909a4d 100644
--- a/plotly/graph_objs/layout/template/data/_contour.py
+++ b/plotly/graph_objs/layout/template/data/_contour.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Contour
diff --git a/plotly/graph_objs/layout/template/data/_contourcarpet.py b/plotly/graph_objs/layout/template/data/_contourcarpet.py
index e69de29bb2..6240faf510 100644
--- a/plotly/graph_objs/layout/template/data/_contourcarpet.py
+++ b/plotly/graph_objs/layout/template/data/_contourcarpet.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Contourcarpet
diff --git a/plotly/graph_objs/layout/template/data/_densitymap.py b/plotly/graph_objs/layout/template/data/_densitymap.py
index e69de29bb2..c73e108c7c 100644
--- a/plotly/graph_objs/layout/template/data/_densitymap.py
+++ b/plotly/graph_objs/layout/template/data/_densitymap.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Densitymap
diff --git a/plotly/graph_objs/layout/template/data/_densitymapbox.py b/plotly/graph_objs/layout/template/data/_densitymapbox.py
index e69de29bb2..d655b21ab3 100644
--- a/plotly/graph_objs/layout/template/data/_densitymapbox.py
+++ b/plotly/graph_objs/layout/template/data/_densitymapbox.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Densitymapbox
diff --git a/plotly/graph_objs/layout/template/data/_funnel.py b/plotly/graph_objs/layout/template/data/_funnel.py
index e69de29bb2..70e2ba74d4 100644
--- a/plotly/graph_objs/layout/template/data/_funnel.py
+++ b/plotly/graph_objs/layout/template/data/_funnel.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Funnel
diff --git a/plotly/graph_objs/layout/template/data/_funnelarea.py b/plotly/graph_objs/layout/template/data/_funnelarea.py
index e69de29bb2..242d0fcc96 100644
--- a/plotly/graph_objs/layout/template/data/_funnelarea.py
+++ b/plotly/graph_objs/layout/template/data/_funnelarea.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Funnelarea
diff --git a/plotly/graph_objs/layout/template/data/_heatmap.py b/plotly/graph_objs/layout/template/data/_heatmap.py
index e69de29bb2..6098ee83e7 100644
--- a/plotly/graph_objs/layout/template/data/_heatmap.py
+++ b/plotly/graph_objs/layout/template/data/_heatmap.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Heatmap
diff --git a/plotly/graph_objs/layout/template/data/_histogram.py b/plotly/graph_objs/layout/template/data/_histogram.py
index e69de29bb2..7ba4c6df2f 100644
--- a/plotly/graph_objs/layout/template/data/_histogram.py
+++ b/plotly/graph_objs/layout/template/data/_histogram.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Histogram
diff --git a/plotly/graph_objs/layout/template/data/_histogram2d.py b/plotly/graph_objs/layout/template/data/_histogram2d.py
index e69de29bb2..710f7f9929 100644
--- a/plotly/graph_objs/layout/template/data/_histogram2d.py
+++ b/plotly/graph_objs/layout/template/data/_histogram2d.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Histogram2d
diff --git a/plotly/graph_objs/layout/template/data/_histogram2dcontour.py b/plotly/graph_objs/layout/template/data/_histogram2dcontour.py
index e69de29bb2..94af41aa92 100644
--- a/plotly/graph_objs/layout/template/data/_histogram2dcontour.py
+++ b/plotly/graph_objs/layout/template/data/_histogram2dcontour.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Histogram2dContour
diff --git a/plotly/graph_objs/layout/template/data/_icicle.py b/plotly/graph_objs/layout/template/data/_icicle.py
index e69de29bb2..6749cbe60a 100644
--- a/plotly/graph_objs/layout/template/data/_icicle.py
+++ b/plotly/graph_objs/layout/template/data/_icicle.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Icicle
diff --git a/plotly/graph_objs/layout/template/data/_image.py b/plotly/graph_objs/layout/template/data/_image.py
index e69de29bb2..828920ac69 100644
--- a/plotly/graph_objs/layout/template/data/_image.py
+++ b/plotly/graph_objs/layout/template/data/_image.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Image
diff --git a/plotly/graph_objs/layout/template/data/_indicator.py b/plotly/graph_objs/layout/template/data/_indicator.py
index e69de29bb2..a5a488f8bb 100644
--- a/plotly/graph_objs/layout/template/data/_indicator.py
+++ b/plotly/graph_objs/layout/template/data/_indicator.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Indicator
diff --git a/plotly/graph_objs/layout/template/data/_isosurface.py b/plotly/graph_objs/layout/template/data/_isosurface.py
index e69de29bb2..5a7885ab64 100644
--- a/plotly/graph_objs/layout/template/data/_isosurface.py
+++ b/plotly/graph_objs/layout/template/data/_isosurface.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Isosurface
diff --git a/plotly/graph_objs/layout/template/data/_mesh3d.py b/plotly/graph_objs/layout/template/data/_mesh3d.py
index e69de29bb2..2172a23bd4 100644
--- a/plotly/graph_objs/layout/template/data/_mesh3d.py
+++ b/plotly/graph_objs/layout/template/data/_mesh3d.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Mesh3d
diff --git a/plotly/graph_objs/layout/template/data/_ohlc.py b/plotly/graph_objs/layout/template/data/_ohlc.py
index e69de29bb2..d3f857428c 100644
--- a/plotly/graph_objs/layout/template/data/_ohlc.py
+++ b/plotly/graph_objs/layout/template/data/_ohlc.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Ohlc
diff --git a/plotly/graph_objs/layout/template/data/_parcats.py b/plotly/graph_objs/layout/template/data/_parcats.py
index e69de29bb2..9b0290bcce 100644
--- a/plotly/graph_objs/layout/template/data/_parcats.py
+++ b/plotly/graph_objs/layout/template/data/_parcats.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Parcats
diff --git a/plotly/graph_objs/layout/template/data/_parcoords.py b/plotly/graph_objs/layout/template/data/_parcoords.py
index e69de29bb2..ccf5629c54 100644
--- a/plotly/graph_objs/layout/template/data/_parcoords.py
+++ b/plotly/graph_objs/layout/template/data/_parcoords.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Parcoords
diff --git a/plotly/graph_objs/layout/template/data/_pie.py b/plotly/graph_objs/layout/template/data/_pie.py
index e69de29bb2..0625fd2888 100644
--- a/plotly/graph_objs/layout/template/data/_pie.py
+++ b/plotly/graph_objs/layout/template/data/_pie.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Pie
diff --git a/plotly/graph_objs/layout/template/data/_sankey.py b/plotly/graph_objs/layout/template/data/_sankey.py
index e69de29bb2..b572f657ce 100644
--- a/plotly/graph_objs/layout/template/data/_sankey.py
+++ b/plotly/graph_objs/layout/template/data/_sankey.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Sankey
diff --git a/plotly/graph_objs/layout/template/data/_scatter.py b/plotly/graph_objs/layout/template/data/_scatter.py
index e69de29bb2..afcfab30af 100644
--- a/plotly/graph_objs/layout/template/data/_scatter.py
+++ b/plotly/graph_objs/layout/template/data/_scatter.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scatter
diff --git a/plotly/graph_objs/layout/template/data/_scatter3d.py b/plotly/graph_objs/layout/template/data/_scatter3d.py
index e69de29bb2..93146220e3 100644
--- a/plotly/graph_objs/layout/template/data/_scatter3d.py
+++ b/plotly/graph_objs/layout/template/data/_scatter3d.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scatter3d
diff --git a/plotly/graph_objs/layout/template/data/_scattercarpet.py b/plotly/graph_objs/layout/template/data/_scattercarpet.py
index e69de29bb2..26d87ca7c1 100644
--- a/plotly/graph_objs/layout/template/data/_scattercarpet.py
+++ b/plotly/graph_objs/layout/template/data/_scattercarpet.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scattercarpet
diff --git a/plotly/graph_objs/layout/template/data/_scattergeo.py b/plotly/graph_objs/layout/template/data/_scattergeo.py
index e69de29bb2..34308e1a08 100644
--- a/plotly/graph_objs/layout/template/data/_scattergeo.py
+++ b/plotly/graph_objs/layout/template/data/_scattergeo.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scattergeo
diff --git a/plotly/graph_objs/layout/template/data/_scattergl.py b/plotly/graph_objs/layout/template/data/_scattergl.py
index e69de29bb2..30bd3712b8 100644
--- a/plotly/graph_objs/layout/template/data/_scattergl.py
+++ b/plotly/graph_objs/layout/template/data/_scattergl.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scattergl
diff --git a/plotly/graph_objs/layout/template/data/_scattermap.py b/plotly/graph_objs/layout/template/data/_scattermap.py
index e69de29bb2..5a494e2320 100644
--- a/plotly/graph_objs/layout/template/data/_scattermap.py
+++ b/plotly/graph_objs/layout/template/data/_scattermap.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scattermap
diff --git a/plotly/graph_objs/layout/template/data/_scattermapbox.py b/plotly/graph_objs/layout/template/data/_scattermapbox.py
index e69de29bb2..6c3333aa94 100644
--- a/plotly/graph_objs/layout/template/data/_scattermapbox.py
+++ b/plotly/graph_objs/layout/template/data/_scattermapbox.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scattermapbox
diff --git a/plotly/graph_objs/layout/template/data/_scatterpolar.py b/plotly/graph_objs/layout/template/data/_scatterpolar.py
index e69de29bb2..e1417b2381 100644
--- a/plotly/graph_objs/layout/template/data/_scatterpolar.py
+++ b/plotly/graph_objs/layout/template/data/_scatterpolar.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scatterpolar
diff --git a/plotly/graph_objs/layout/template/data/_scatterpolargl.py b/plotly/graph_objs/layout/template/data/_scatterpolargl.py
index e69de29bb2..60b023a581 100644
--- a/plotly/graph_objs/layout/template/data/_scatterpolargl.py
+++ b/plotly/graph_objs/layout/template/data/_scatterpolargl.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scatterpolargl
diff --git a/plotly/graph_objs/layout/template/data/_scattersmith.py b/plotly/graph_objs/layout/template/data/_scattersmith.py
index e69de29bb2..e2dcf41bd0 100644
--- a/plotly/graph_objs/layout/template/data/_scattersmith.py
+++ b/plotly/graph_objs/layout/template/data/_scattersmith.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scattersmith
diff --git a/plotly/graph_objs/layout/template/data/_scatterternary.py b/plotly/graph_objs/layout/template/data/_scatterternary.py
index e69de29bb2..2221eadd54 100644
--- a/plotly/graph_objs/layout/template/data/_scatterternary.py
+++ b/plotly/graph_objs/layout/template/data/_scatterternary.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Scatterternary
diff --git a/plotly/graph_objs/layout/template/data/_splom.py b/plotly/graph_objs/layout/template/data/_splom.py
index e69de29bb2..0909cdfd9d 100644
--- a/plotly/graph_objs/layout/template/data/_splom.py
+++ b/plotly/graph_objs/layout/template/data/_splom.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Splom
diff --git a/plotly/graph_objs/layout/template/data/_streamtube.py b/plotly/graph_objs/layout/template/data/_streamtube.py
index e69de29bb2..8b23c3161c 100644
--- a/plotly/graph_objs/layout/template/data/_streamtube.py
+++ b/plotly/graph_objs/layout/template/data/_streamtube.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Streamtube
diff --git a/plotly/graph_objs/layout/template/data/_sunburst.py b/plotly/graph_objs/layout/template/data/_sunburst.py
index e69de29bb2..1b9511c7d5 100644
--- a/plotly/graph_objs/layout/template/data/_sunburst.py
+++ b/plotly/graph_objs/layout/template/data/_sunburst.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Sunburst
diff --git a/plotly/graph_objs/layout/template/data/_surface.py b/plotly/graph_objs/layout/template/data/_surface.py
index e69de29bb2..cfaa55d738 100644
--- a/plotly/graph_objs/layout/template/data/_surface.py
+++ b/plotly/graph_objs/layout/template/data/_surface.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Surface
diff --git a/plotly/graph_objs/layout/template/data/_table.py b/plotly/graph_objs/layout/template/data/_table.py
index e69de29bb2..2b6d4ad1e5 100644
--- a/plotly/graph_objs/layout/template/data/_table.py
+++ b/plotly/graph_objs/layout/template/data/_table.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Table
diff --git a/plotly/graph_objs/layout/template/data/_treemap.py b/plotly/graph_objs/layout/template/data/_treemap.py
index e69de29bb2..5c648e7108 100644
--- a/plotly/graph_objs/layout/template/data/_treemap.py
+++ b/plotly/graph_objs/layout/template/data/_treemap.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Treemap
diff --git a/plotly/graph_objs/layout/template/data/_violin.py b/plotly/graph_objs/layout/template/data/_violin.py
index e69de29bb2..23221b6677 100644
--- a/plotly/graph_objs/layout/template/data/_violin.py
+++ b/plotly/graph_objs/layout/template/data/_violin.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Violin
diff --git a/plotly/graph_objs/layout/template/data/_volume.py b/plotly/graph_objs/layout/template/data/_volume.py
index e69de29bb2..1128580ca0 100644
--- a/plotly/graph_objs/layout/template/data/_volume.py
+++ b/plotly/graph_objs/layout/template/data/_volume.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Volume
diff --git a/plotly/graph_objs/layout/template/data/_waterfall.py b/plotly/graph_objs/layout/template/data/_waterfall.py
index e69de29bb2..c45e7852a2 100644
--- a/plotly/graph_objs/layout/template/data/_waterfall.py
+++ b/plotly/graph_objs/layout/template/data/_waterfall.py
@@ -0,0 +1 @@
+from plotly.graph_objs import Waterfall
diff --git a/tests/test_core/test_shapes/test_add_hline_empty_subplots.py b/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
index 60396de3d9..f14225a36d 100644
--- a/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
+++ b/tests/test_core/test_shapes/test_add_hline_empty_subplots.py
@@ -1,4 +1,5 @@
 import pytest
+import plotly.graph_objects as go
 from plotly.subplots import make_subplots