Closed
Description
Bug summary
xref #21723
In pandas, we have this matplotlib code calling Figure.colorbar which is triggering the colormesh deprecation:
Auto-removal of grids by pcolor() and pcolormesh() is deprecated since 3.5 and will be removed two minor releases later; please call grid(False) first.
And calling ax.grid(False) does not address the deprecation
diff --git a/pandas/plotting/_matplotlib/core.py b/pandas/plotting/_matplotlib/core.py
index ee7493813f..69c749e84b 100644
--- a/pandas/plotting/_matplotlib/core.py
+++ b/pandas/plotting/_matplotlib/core.py
@@ -1172,6 +1172,7 @@ class PlanePlot(MPLPlot, ABC):
# GH33389, if ax is used multiple times, we should always
# use the last one which contains the latest information
# about the ax
+ ax.grid(False)
img = ax.collections[-1]
return self.fig.colorbar(img, ax=ax, **kwds)
Code for reproduction
https://github.com/pandas-dev/pandas/blob/03b4095f9de08af16db9698f15161b5a13a42286/pandas/plotting/_matplotlib/core.py#L1175-L1176Actual outcome
Auto-removal of grids by pcolor() and pcolormesh() is deprecated since 3.5 and will be removed two minor releases later; please call grid(False) first.
Expected outcome
No deprecation warning.
Additional information
No response
Operating system
No response
Matplotlib Version
3.5.2
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
No response