matplotlib · QuLogic · Feb 25, 2022 · Feb 20, 2022
diff --git a/doc/api/next_api_changes/removals/22514-OG.rst b/doc/api/next_api_changes/removals/22514-OG.rst
@@ -0,0 +1,7 @@
+Removal of deprecations in ``cbook``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The module ``cbook.deprecation`` is removed from the public API as it is
+considered internal. This also holds for deprecation-related re-imports in
+``cbook``: ``deprecated``, ``MatplotlibDeprecationWarning``,
+``mplDeprecation``, and ``warn_deprecated``.
diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -107,8 +107,8 @@
 # cbook must import matplotlib only within function
 # definitions, so it is safe to import from it here.
 from . import _api, _version, cbook, docstring, rcsetup
-from matplotlib.cbook import MatplotlibDeprecationWarning, sanitize_sequence
-from matplotlib.cbook import mplDeprecation  # deprecated
+from matplotlib.cbook import sanitize_sequence
+from matplotlib._api import MatplotlibDeprecationWarning
 from matplotlib.rcsetup import validate_backend, cycler
 
 

diff --git a/lib/matplotlib/_api/deprecation.py b/lib/matplotlib/_api/deprecation.py
@@ -21,11 +21,6 @@ class MatplotlibDeprecationWarning(DeprecationWarning):
     """A class for issuing deprecation warnings for Matplotlib users."""
 
 
-# mplDeprecation is deprecated. Use MatplotlibDeprecationWarning instead.
-# remove when removing the re-import from cbook
-mplDeprecation = MatplotlibDeprecationWarning
-
-
 def _generate_deprecation_warning(
         since, message='', name='', alternative='', pending=False, obj_type='',
         addendum='', *, removal=''):

diff --git a/lib/matplotlib/cbook/__init__.py b/lib/matplotlib/cbook/__init__.py
@@ -29,18 +29,6 @@
 
 import matplotlib
 from matplotlib import _api, _c_internal_utils
-from matplotlib._api.deprecation import (
-    MatplotlibDeprecationWarning, mplDeprecation)
-
-
-@_api.deprecated("3.4")
-def deprecated(*args, **kwargs):
-    return _api.deprecated(*args, **kwargs)
-
-
-@_api.deprecated("3.4")
-def warn_deprecated(*args, **kwargs):
-    _api.warn_deprecated(*args, **kwargs)
 
 
 def _get_running_interactive_framework():
@@ -365,7 +353,8 @@ def __repr__(self):
 
 
 def _local_over_kwdict(
-        local_var, kwargs, *keys, warning_cls=MatplotlibDeprecationWarning):
+        local_var, kwargs, *keys,
+        warning_cls=_api.MatplotlibDeprecationWarning):
     out = local_var
     for key in keys:
         kwarg_val = kwargs.pop(key, None)

diff --git a/lib/matplotlib/cbook/deprecation.py b/lib/matplotlib/cbook/deprecation.py
diff --git a/lib/matplotlib/collections.py b/lib/matplotlib/collections.py
@@ -1420,7 +1420,7 @@ def __init__(self, segments,  # Can be None.
         if args:
             argkw = {name: val for name, val in zip(argnames, args)}
             kwargs.update(argkw)
-            cbook.warn_deprecated(
+            _api.warn_deprecated(
                 "3.4", message="Since %(since)s, passing LineCollection "
                 "arguments other than the first, 'segments', as positional "
                 "arguments is deprecated, and they will become keyword-only "

diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py
@@ -17,8 +17,8 @@
 
 import matplotlib
 import matplotlib as mpl
-from matplotlib.testing.decorators import (
-    image_comparison, check_figures_equal, remove_ticks_and_titles)
+from matplotlib import rc_context
+from matplotlib._api import MatplotlibDeprecationWarning
 import matplotlib.colors as mcolors
 import matplotlib.dates as mdates
 from matplotlib.figure import Figure
@@ -32,8 +32,8 @@
 import matplotlib.transforms as mtransforms
 from numpy.testing import (
     assert_allclose, assert_array_equal, assert_array_almost_equal)
-from matplotlib import rc_context
-from matplotlib.cbook import MatplotlibDeprecationWarning
+from matplotlib.testing.decorators import (
+    image_comparison, check_figures_equal, remove_ticks_and_titles)
 
 # Note: Some test cases are run twice: once normally and once with labeled data
 #       These two must be defined in the same test function or need to have

diff --git a/lib/matplotlib/tests/test_backend_ps.py b/lib/matplotlib/tests/test_backend_ps.py
@@ -7,7 +7,7 @@
 import pytest
 
 from matplotlib import cbook, patheffects
-from matplotlib.cbook import MatplotlibDeprecationWarning
+from matplotlib._api import MatplotlibDeprecationWarning
 from matplotlib.figure import Figure
 from matplotlib.testing.decorators import check_figures_equal, image_comparison
 import matplotlib as mpl

diff --git a/lib/matplotlib/tests/test_colors.py b/lib/matplotlib/tests/test_colors.py
@@ -10,12 +10,10 @@
 
 from numpy.testing import assert_array_equal, assert_array_almost_equal
 
-from matplotlib import cycler
+from matplotlib import _api, cbook, cm, cycler
 import matplotlib
 import matplotlib.colors as mcolors
-import matplotlib.cm as cm
 import matplotlib.colorbar as mcolorbar
-import matplotlib.cbook as cbook
 import matplotlib.pyplot as plt
 import matplotlib.scale as mscale
 from matplotlib.testing.decorators import image_comparison, check_figures_equal
@@ -109,7 +107,7 @@ def test_colormap_global_set_warn():
     new_cm = plt.get_cmap('viridis')
     # Store the old value so we don't override the state later on.
     orig_cmap = copy.copy(new_cm)
-    with pytest.warns(cbook.MatplotlibDeprecationWarning,
+    with pytest.warns(_api.MatplotlibDeprecationWarning,
                       match="You are modifying the state of a globally"):
         # This should warn now because we've modified the global state
         new_cm.set_under('k')
@@ -120,7 +118,7 @@ def test_colormap_global_set_warn():
     # Test that registering and then modifying warns
     plt.register_cmap(name='test_cm', cmap=copy.copy(orig_cmap))
     new_cm = plt.get_cmap('test_cm')
-    with pytest.warns(cbook.MatplotlibDeprecationWarning,
+    with pytest.warns(_api.MatplotlibDeprecationWarning,
                       match="You are modifying the state of a globally"):
         # This should warn now because we've modified the global state
         new_cm.set_under('k')
@@ -132,11 +130,11 @@ def test_colormap_global_set_warn():
 
 def test_colormap_dict_deprecate():
     # Make sure we warn on get and set access into cmap_d
-    with pytest.warns(cbook.MatplotlibDeprecationWarning,
+    with pytest.warns(_api.MatplotlibDeprecationWarning,
                       match="The global colormaps dictionary is no longer"):
         cmap = plt.cm.cmap_d['viridis']
 
-    with pytest.warns(cbook.MatplotlibDeprecationWarning,
+    with pytest.warns(_api.MatplotlibDeprecationWarning,
                       match="The global colormaps dictionary is no longer"):
         plt.cm.cmap_d['test'] = cmap
 

diff --git a/lib/matplotlib/tests/test_pyplot.py b/lib/matplotlib/tests/test_pyplot.py
@@ -8,7 +8,7 @@
 
 import matplotlib as mpl
 from matplotlib import pyplot as plt
-from matplotlib.cbook import MatplotlibDeprecationWarning
+from matplotlib._api import MatplotlibDeprecationWarning
 
 
 def test_pyplot_up_to_date(tmpdir):