Deprecate incorrect import locations

oscargus · oscargus · commit 9fced561465d · 2022-08-06T00:33:36.000+02:00
diff --git a/doc/api/next_api_changes/deprecations/23565-OG.rst b/doc/api/next_api_changes/deprecations/23565-OG.rst
@@ -0,0 +1,7 @@
+Alternative import location for ``TextPath`` and ``AxislineStyle``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+These two classes have historically sometimes been imported from incorrect
+locations. This is now deprecated and `.TextPath` should be imported from
+`matplotlib.textpath`, while `AxislineStyle` should be imported from
+`mpl_toolkit.axisartist.axisline_style`.
diff --git a/lib/matplotlib/text.py b/lib/matplotlib/text.py
@@ -15,14 +15,20 @@
 from .artist import Artist
 from .font_manager import FontProperties
 from .patches import FancyArrowPatch, FancyBboxPatch, Rectangle
-from .textpath import TextPath  # Unused, but imported by others.
+from .textpath import TextPath as _TextPath  # Unused, but imported by others.
 from .transforms import (
     Affine2D, Bbox, BboxBase, BboxTransformTo, IdentityTransform, Transform)
 
 
 _log = logging.getLogger(__name__)
 
 
+@_api.deprecated("3.6", message="Since %(since)s, %(name)s should be imported "
+                 "from its correct module: matplotlib.textpath")
+class TextPath(_TextPath):
+    pass
+
+
 @_api.deprecated("3.6")
 def get_rotation(rotation):
     """
diff --git a/lib/mpl_toolkits/axes_grid1/anchored_artists.py b/lib/mpl_toolkits/axes_grid1/anchored_artists.py
@@ -3,7 +3,7 @@
                                   DrawingArea, TextArea, VPacker)
 from matplotlib.patches import (Rectangle, Ellipse, ArrowStyle,
                                 FancyArrowPatch, PathPatch)
-from matplotlib.text import TextPath
+from matplotlib.textpath import TextPath
 
 __all__ = ['AnchoredDrawingArea', 'AnchoredAuxTransformBox',
            'AnchoredEllipse', 'AnchoredSizeBar', 'AnchoredDirectionArrows']
diff --git a/lib/mpl_toolkits/axisartist/axislines.py b/lib/mpl_toolkits/axisartist/axislines.py
@@ -46,10 +46,17 @@
 import matplotlib.axes as maxes
 from matplotlib.path import Path
 from mpl_toolkits.axes_grid1 import mpl_axes
-from .axisline_style import AxislineStyle
+from .axisline_style import AxislineStyle as _AxislineStyle
 from .axis_artist import AxisArtist, GridlinesCollection
 
 
+@_api.deprecated("3.6", message="Since %(since)s, %(name)s should be imported "
+                                "from its correct module: "
+                                "mpl_toolkits.axisartist.axisline_style")
+class AxislineStyle(_AxislineStyle):
+    pass
+
+
 class AxisArtistHelper:
     """
     AxisArtistHelper should define
