import matplotlib.pyplot as plt
import numpy as np
x = np.random.normal(10000)
fig, ax = plt.subplots()
ax.hist(
x,
edgecolor=(0.5, 0, 0.5, 0.8),
facecolor="None",
)Traceback (most recent call last):
File "/home/nvaytet/code/mpltoolbox/jupyter/example.py", line 7, in <module>
ax.hist(
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/_api/deprecation.py", line 453, in wrapper
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/__init__.py", line 1521, in inner
return func(
^^^^^
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/axes/_axes.py", line 7266, in hist
p._internal_update(kwargs)
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/artist.py", line 1233, in _internal_update
return self._update_props(
^^^^^^^^^^^^^^^^^^^
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/artist.py", line 1209, in _update_props
ret.append(func(v))
^^^^^^^
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/patches.py", line 386, in set_edgecolor
self._set_edgecolor(color)
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/patches.py", line 372, in _set_edgecolor
self._edgecolor = colors.to_rgba(color, self._alpha)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/colors.py", line 316, in to_rgba
rgba = _to_rgba_no_colorcycle(c, alpha)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/nvaytet/miniforge3/lib/python3.12/site-packages/matplotlib/colors.py", line 400, in _to_rgba_no_colorcycle
raise ValueError(f"Invalid RGBA argument: {orig_c!r}")
ValueError: Invalid RGBA argument: np.float64(0.5)
Should not raise.
This raises with matplotlib 3.10.0 & 3.10.1.
No error is raised with 3.9.4.
Bug summary
An error is raised when using the
edgecolorargument withax.hist.Code for reproduction
Actual outcome
Expected outcome
Should not raise.
Additional information
This raises with matplotlib 3.10.0 & 3.10.1.
No error is raised with 3.9.4.
Operating system
Ubuntu 24.04
Matplotlib Version
3.10.*
Matplotlib Backend
No response
Python version
3.12
Jupyter version
No response
Installation
conda