matplotlib · QuLogic · Mar 23, 2020 · Mar 15, 2020
diff --git a/doc/api/next_api_changes/removals.rst b/doc/api/next_api_changes/removals.rst
@@ -7,8 +7,8 @@ Modules
 - ``backends.qt_editor.formlayout`` (use the formlayout module available on
   PyPI instead).
 
-Classes and methods
-~~~~~~~~~~~~~~~~~~~
+Classes, methods and attributes
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 - ``backend_bases.RendererBase.strip_math()``
   (use ``cbook.strip_math()`` instead)
 
@@ -39,6 +39,13 @@ Classes and methods
 - ``backend_qt5.NavigationToolbar2QT.buttons`` property (no replacement)
 - ``backend_qt5.NavigationToolbar2QT.adj_window`` property (no replacement)
 
+- ``cbook.dedent()`` (use `inspect.cleandoc` instead)
+- ``cbook.get_label()`` (no replacement)
+- ``cbook.is_hashable()`` (use ``isinstance(..., collections.abc.Hashable)``
+  instead)
+- ``cbook.iterable()`` (use ``numpy.iterable()`` instead)
+- ``cbook.safezip()`` (no replacement)
+
 - ``docstring.Appender`` (no replacement)
 - ``docstring.dedent()`` (use `inspect.getdoc` instead)
 - ``docstring.copy_dedent()``
@@ -78,6 +85,10 @@ Classes and methods
 - ``ticker.LogFormatter.pprint_val()`` (no replacement)
 - ``ticker.decade_down()`` (no replacement)
 - ``ticker.decade_up()`` (no replacement)
+- ``Tick`` properties ``gridOn``, ``tick1On``, ``tick2On``, ``label1On``,
+  ``label2On`` (use ``set_visible()`` / ``get_visible()`` on ``Tick.gridline``,
+  ``Tick.tick1line``, ``Tick.tick2line``, ``Tick.label1``,  ``Tick.label2``
+  instead)
 
 - ``Artist.aname`` property (no replacement)
 - ``Axis.iter_ticks`` (no replacement)
@@ -169,6 +180,13 @@ Arguments
 - The ``s`` parameter of `.Annotation` has been renamed to ``text``.
 - For all functions in `.bezier` that supported a ``tolerence`` parameter, this
   parameter has been renamed to ``tolerance``.
+- ``axis("normal")`` is not supported anymore. Use the equivalent
+  ``axis("auto")`` instead.
+- ``axis()`` does not accept arbitrary keyword arguments anymore.
+- ``Axis.set_ticklabels()`` does not accept arbitrary positional arguments
+  other than ``ticklabels``.
+- ``mpl_toolkits.mplot3d.art3d.Poly3DCollection.set_zsort`` does not accept
+  the value ``True`` anymore. Pass the equivalent value 'average' instead.
 
 rcParams
 ~~~~~~~~

diff --git a/doc/api/prev_api_changes/api_changes_3.1.0.rst b/doc/api/prev_api_changes/api_changes_3.1.0.rst
@@ -860,11 +860,11 @@ future version.
 - ``backend_ps.PsBackendHelper``
 - ``backend_ps.ps_backend_helper``,
 
-- `.cbook.iterable`
-- `.cbook.get_label`
-- `.cbook.safezip`
+- ``cbook.iterable``
+- ``cbook.get_label``
+- ``cbook.safezip``
   Manually check the lengths of the inputs instead, or rely on NumPy to do it.
-- `.cbook.is_hashable`
+- ``cbook.is_hashable``
   Use ``isinstance(..., collections.abc.Hashable)`` instead.
 
 - The ``.backend_bases.RendererBase.strip_math``.  Use

diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -105,8 +105,7 @@
 # cbook must import matplotlib only within function
 # definitions, so it is safe to import from it here.
 from . import cbook, rcsetup
-from matplotlib.cbook import (
-    MatplotlibDeprecationWarning, dedent, get_label, sanitize_sequence)
+from matplotlib.cbook import MatplotlibDeprecationWarning, sanitize_sequence
 from matplotlib.cbook import mplDeprecation  # deprecated
 from matplotlib.rcsetup import defaultParams, validate_backend, cycler
 

diff --git a/lib/matplotlib/axes/_base.py b/lib/matplotlib/axes/_base.py
@@ -1657,7 +1657,6 @@ def axis(self, *args, emit=True, **kwargs):
             'tight'  Set limits just large enough to show all data, then
                      disable further autoscaling.
             'auto'   Automatic scaling (fill plot box with data).
-            'normal' Same as 'auto'; deprecated.
             'image'  'scaled' with axis limits equal to data limits.
             'square' Square plot; similar to 'scaled', but initially forcing
                      ``xmax-xmin == ymax-ymin``.
@@ -1689,12 +1688,7 @@ def axis(self, *args, emit=True, **kwargs):
                 self.set_axis_on()
             elif s == 'off':
                 self.set_axis_off()
-            elif s in ('equal', 'tight', 'scaled', 'normal',
-                       'auto', 'image', 'square'):
-                if s == 'normal':
-                    cbook.warn_deprecated(
-                        "3.1", message="Passing 'normal' to axis() is "
-                        "deprecated since %(since)s; use 'auto' instead.")
+            elif s in ('equal', 'tight', 'scaled', 'auto', 'image', 'square'):
                 self.set_autoscale_on(True)
                 self.set_aspect('auto')
                 self.autoscale_view(tight=False)
@@ -1752,9 +1746,8 @@ def axis(self, *args, emit=True, **kwargs):
             self.set_xlim(xmin, xmax, emit=emit, auto=xauto)
             self.set_ylim(ymin, ymax, emit=emit, auto=yauto)
         if kwargs:
-            cbook.warn_deprecated(
-                "3.1", message="Passing unsupported keyword arguments to "
-                "axis() will raise a TypeError %(removal)s.")
+            raise TypeError(f"axis() got an unexpected keyword argument "
+                            f"'{next(iter(kwargs))}'")
         return (*self.get_xlim(), *self.get_ylim())
 
     def get_legend(self):

diff --git a/lib/matplotlib/axis.py b/lib/matplotlib/axis.py
@@ -186,27 +186,6 @@ def __init__(self, axes, loc, label=None,
 
         self.update_position(loc)
 
-    for _old_name, _new_name in [
-            ("gridOn", "gridline"),
-            ("tick1On", "tick1line"),
-            ("tick2On", "tick2line"),
-            ("label1On", "label1"),
-            ("label2On", "label2")]:
-        locals()[_old_name] = property(
-            cbook.deprecated(
-                "3.1",
-                name=_old_name,
-                alternative="Tick.{}.get_visible".format(_new_name))(
-                    lambda self, _new_name=_new_name:
-                        getattr(self, _new_name).get_visible()),
-            cbook.deprecated(
-                "3.1",
-                name=_old_name,
-                alternative="Tick.{}.set_visible".format(_new_name))(
-                    lambda self, value, _new_name=_new_name:
-                        getattr(self, _new_name).set_visible(value)))
-    del _old_name, _new_name
-
     @property
     @cbook.deprecated("3.1", alternative="Tick.label1", pending=True)
     def label(self):
@@ -1605,7 +1584,7 @@ def set_pickradius(self, pickradius):
         """
         self.pickradius = pickradius
 
-    def set_ticklabels(self, ticklabels, *args, minor=False, **kwargs):
+    def set_ticklabels(self, ticklabels, *, minor=False, **kwargs):
         r"""
         Set the text values of the tick labels.
 
@@ -1630,11 +1609,6 @@ def set_ticklabels(self, ticklabels, *args, minor=False, **kwargs):
             For each tick, includes ``tick.label1`` if it is visible, then
             ``tick.label2`` if it is visible, in that order.
         """
-        if args:
-            cbook.warn_deprecated(
-                "3.1", message="Additional positional arguments to "
-                "set_ticklabels are ignored, and deprecated since Matplotlib "
-                "3.1; passing them will raise a TypeError in Matplotlib 3.3.")
         ticklabels = [t.get_text() if hasattr(t, 'get_text') else t
                       for t in ticklabels]
         if minor:

diff --git a/lib/matplotlib/cbook/__init__.py b/lib/matplotlib/cbook/__init__.py
@@ -352,26 +352,6 @@ def strip_math(s):
     return s
 
 
-@deprecated('3.1', alternative='np.iterable')
-def iterable(obj):
-    """return true if *obj* is iterable"""
-    try:
-        iter(obj)
-    except TypeError:
-        return False
-    return True
-
-
-@deprecated("3.1", alternative="isinstance(..., collections.abc.Hashable)")
-def is_hashable(obj):
-    """Returns true if *obj* can be hashed"""
-    try:
-        hash(obj)
-    except TypeError:
-        return False
-    return True
-
-
 def is_writable_file_like(obj):
     """Return whether *obj* looks like a file object with a *write* method."""
     return callable(getattr(obj, 'write', None))
@@ -535,47 +515,6 @@ def get_realpath_and_stat(path):
 _dedent_regex = {}
 
 
-@deprecated("3.1", alternative="inspect.cleandoc")
-def dedent(s):
-    """
-    Remove excess indentation from docstring *s*.
-
-    Discards any leading blank lines, then removes up to n whitespace
-    characters from each line, where n is the number of leading
-    whitespace characters in the first line. It differs from
-    textwrap.dedent in its deletion of leading blank lines and its use
-    of the first non-blank line to determine the indentation.
-
-    It is also faster in most cases.
-    """
-    # This implementation has a somewhat obtuse use of regular
-    # expressions.  However, this function accounted for almost 30% of
-    # matplotlib startup time, so it is worthy of optimization at all
-    # costs.
-
-    if not s:      # includes case of s is None
-        return ''
-
-    match = _find_dedent_regex.match(s)
-    if match is None:
-        return s
-
-    # This is the number of spaces to remove from the left-hand side.
-    nshift = match.end(1) - match.start(1)
-    if nshift == 0:
-        return s
-
-    # Get a regex that will remove *up to* nshift spaces from the
-    # beginning of each line.  If it isn't in the cache, generate it.
-    unindent = _dedent_regex.get(nshift, None)
-    if unindent is None:
-        unindent = re.compile("\n\r? {0,%d}" % nshift)
-        _dedent_regex[nshift] = unindent
-
-    result = unindent.sub("\n", s).strip()
-    return result
-
-
 class maxdict(dict):
     """
     A dictionary with a maximum size.
@@ -735,19 +674,6 @@ def call(command, os_name):
     return mem
 
 
-_safezip_msg = 'In safezip, len(args[0])=%d but len(args[%d])=%d'
-
-
-@deprecated("3.1")
-def safezip(*args):
-    """make sure *args* are equal len before zipping"""
-    Nx = len(args[0])
-    for i, arg in enumerate(args[1:]):
-        if len(arg) != Nx:
-            raise ValueError(_safezip_msg % (Nx, i + 1, len(arg)))
-    return list(zip(*args))
-
-
 def safe_masked_invalid(x, copy=False):
     x = np.array(x, subok=True, copy=copy)
     if not x.dtype.isnative:
@@ -1819,14 +1745,6 @@ def normalize_kwargs(kw, alias_mapping=None, required=(), forbidden=(),
     return ret
 
 
-@deprecated("3.1")
-def get_label(y, default_name):
-    try:
-        return y.name
-    except AttributeError:
-        return default_name
-
-
 @contextlib.contextmanager
 def _lock_path(path):
     """

diff --git a/lib/matplotlib/pylab.py b/lib/matplotlib/pylab.py
@@ -11,7 +11,7 @@
 considered bad style nowadays.
 """
 
-from matplotlib.cbook import flatten, silent_list, iterable, dedent
+from matplotlib.cbook import flatten, silent_list
 
 import matplotlib as mpl
 

diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -38,7 +38,6 @@
 from matplotlib import rcsetup, style
 from matplotlib import _pylab_helpers, interactive
 from matplotlib import cbook
-from matplotlib.cbook import dedent, deprecated, silent_list, warn_deprecated
 from matplotlib import docstring
 from matplotlib.backend_bases import FigureCanvasBase, MouseButton
 from matplotlib.figure import Figure, figaspect

diff --git a/lib/matplotlib/tests/test_cbook.py b/lib/matplotlib/tests/test_cbook.py
@@ -15,14 +15,6 @@
 from matplotlib.cbook import MatplotlibDeprecationWarning, delete_masked_points
 
 
-def test_is_hashable():
-    with pytest.warns(MatplotlibDeprecationWarning):
-        s = 'string'
-        assert cbook.is_hashable(s)
-        lst = ['list', 'of', 'stings']
-        assert not cbook.is_hashable(lst)
-
-
 class Test_delete_masked_points:
     def test_bad_first_arg(self):
         with pytest.raises(ValueError):

diff --git a/lib/mpl_toolkits/mplot3d/art3d.py b/lib/mpl_toolkits/mplot3d/art3d.py
@@ -12,7 +12,7 @@
 import numpy as np
 
 from matplotlib import (
-    artist, cbook, colors as mcolors, lines, text as mtext, path as mpath)
+    artist, colors as mcolors, lines, text as mtext, path as mpath)
 from matplotlib.collections import (
     LineCollection, PolyCollection, PatchCollection, PathCollection)
 from matplotlib.colors import Normalize
@@ -584,15 +584,8 @@ def set_zsort(self, zsort):
         ----------
         zsort : {'average', 'min', 'max'}
             The function applied on the z-coordinates of the vertices in the
-            viewer's coordinate system, to determine the z-order.  *True* is
-            deprecated and equivalent to 'average'.
+            viewer's coordinate system, to determine the z-order.
         """
-        if zsort is True:
-            cbook.warn_deprecated(
-                "3.1", message="Passing True to mean 'average' for set_zsort "
-                "is deprecated and support will be removed in Matplotlib 3.3; "
-                "pass 'average' instead.")
-            zsort = 'average'
         self._zsortfunc = self._zsort_functions[zsort]
         self._sort_zpos = None
         self.stale = True