diff --git a/doc/api/api_changes_3.3/deprecations.rst b/doc/api/api_changes_3.3/deprecations.rst
index a1c40be2b6d6..adf6337deca9 100644
--- a/doc/api/api_changes_3.3/deprecations.rst
+++ b/doc/api/api_changes_3.3/deprecations.rst
@@ -455,3 +455,8 @@ replaced by calls to ``draw_idle()`` on the corresponding canvas.
~~~~~~~~~~~~~~~~~~~~~~~~~~
The ``add_checker`` and ``check_update`` methods and ``update_dict`` attribute
of `.ScalarMappable` are deprecated.
+
+``ColorbarBase`` parameters will become keyword-only
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+All parameters of ``ColorbarBase``, except for the first (*ax*), will become
+keyword-only, consistently with ``Colorbar``.
diff --git a/lib/matplotlib/colorbar.py b/lib/matplotlib/colorbar.py
index 09e7d3bd9e69..b49451e67e89 100644
--- a/lib/matplotlib/colorbar.py
+++ b/lib/matplotlib/colorbar.py
@@ -394,6 +394,7 @@ class ColorbarBase:
n_rasterize = 50 # rasterize solids if number of colors >= n_rasterize
+ @cbook._make_keyword_only("3.3", "cmap")
def __init__(self, ax, cmap=None,
norm=None,
alpha=None,
diff --git a/lib/matplotlib/tests/test_colorbar.py b/lib/matplotlib/tests/test_colorbar.py
index 61b3efa3d3de..2a234cf7c0e9 100644
--- a/lib/matplotlib/tests/test_colorbar.py
+++ b/lib/matplotlib/tests/test_colorbar.py
@@ -226,7 +226,7 @@ def test_remove_from_figure(use_gridspec):
def test_colorbarbase():
# smoke test from #3805
ax = plt.gca()
- ColorbarBase(ax, plt.cm.bone)
+ ColorbarBase(ax, cmap=plt.cm.bone)
@image_comparison(['colorbar_closed_patch'], remove_text=True)
pFad - Phonifier reborn
Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.
Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.
Alternative Proxies:
Alternative Proxy
pFad Proxy
pFad v3 Proxy
pFad v4 Proxy