Repository navigation
Removing a shared axes via ax.remove() leads to an error. #14911
Description
Bug report
Bug summary
removing a shared axes via ax.remove() leads to an error.
This bisects to "Fix locator/formatter setting when removing shared Axes" #13983 (in current master, targeted for 3.2) which initially headed out to make the situation of removing a shared axes better, fixing #12853, but apparently the test doesn't capture the below simple case.
Hence marking as release critical for 3.2, in order not to release this bug.
Code for reproduction
import matplotlib.pyplot as plt
fig, axs = plt.subplots(2, sharex=True)
axs[0].remove()
plt.show()Actual outcome
Traceback (most recent call last):
File "d:\***\matplotlib\lib\matplotlib\backends\backend_qt5.py", line 488, in _draw_idle
self.draw()
File "d:\***\matplotlib\lib\matplotlib\backends\backend_agg.py", line 396, in draw
self.figure.draw(self.renderer)
File "d:\***\matplotlib\lib\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "d:\***\matplotlib\lib\matplotlib\figure.py", line 1722, in draw
renderer, self, artists, self.suppressComposite)
File "d:\***\matplotlib\lib\matplotlib\image.py", line 136, in _draw_list_compositing_images
a.draw(renderer)
File "d:\***\matplotlib\lib\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "d:\***\matplotlib\lib\matplotlib\axes\_base.py", line 2622, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "d:\***\matplotlib\lib\matplotlib\image.py", line 136, in _draw_list_compositing_images
a.draw(renderer)
File "d:\***\matplotlib\lib\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "d:\***\matplotlib\lib\matplotlib\axis.py", line 1227, in draw
ticks_to_draw = self._update_ticks()
File "d:\***\matplotlib\lib\matplotlib\axis.py", line 1103, in _update_ticks
major_locs = self.get_majorticklocs()
File "d:\***\matplotlib\lib\matplotlib\axis.py", line 1348, in get_majorticklocs
return self.major.locator()
File "d:\***\matplotlib\lib\matplotlib\ticker.py", line 2032, in __call__
return self.tick_values(vmin, vmax)
File "d:\***\matplotlib\lib\matplotlib\ticker.py", line 2040, in tick_values
locs = self._raw_ticks(vmin, vmax)
File "d:\***\matplotlib\lib\matplotlib\ticker.py", line 1979, in _raw_ticks
nbins = np.clip(self.axis.get_tick_space(),
File "d:\***\matplotlib\lib\matplotlib\axis.py", line 2193, in get_tick_space
length = ((ends[1][0] - ends[0][0]) / self.axes.figure.dpi) * 72
AttributeError: 'NoneType' object has no attribute 'dpi'
Expected outcome
A plot with the first axes removed, as would be achieved with the same code running in 3.1
Matplotlib version
- Operating system: Win 8.1
- Matplotlib version: current master
- Matplotlib backend (print(matplotlib.get_backend())): Qt5Agg
- Python version: 3.6
Activity