Even with quantity support enabled, imshow results in tracebacks like this. Astropy quantity objects don't have this problem. What do we need to do to fix it?
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
~/.local/lib/python3.9/site-packages/IPython/core/formatters.py in __call__(self, obj)
339 pass
340 else:
--> 341 return printer(obj)
342 # Finally look for special method names
343 method = get_real_method(obj, self.print_method)
~/.local/lib/python3.9/site-packages/IPython/core/pylabtools.py in print_figure(fig, fmt, bbox_inches, base64, **kwargs)
149 FigureCanvasBase(fig)
150
--> 151 fig.canvas.print_figure(bytes_io, **kw)
152 data = bytes_io.getvalue()
153 if fmt == 'svg':
~/.local/lib/python3.9/site-packages/matplotlib/backend_bases.py in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, bbox_inches, pad_inches, bbox_extra_artists, backend, **kwargs)
2228 else suppress())
2229 with ctx:
-> 2230 self.figure.draw(renderer)
2231
2232 if bbox_inches:
~/.local/lib/python3.9/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
72 @wraps(draw)
73 def draw_wrapper(artist, renderer, *args, **kwargs):
---> 74 result = draw(artist, renderer, *args, **kwargs)
75 if renderer._rasterizing:
76 renderer.stop_rasterizing()
~/.local/lib/python3.9/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
49 renderer.start_filter()
50
---> 51 return draw(artist, renderer, *args, **kwargs)
52 finally:
53 if artist.get_agg_filter() is not None:
~/.local/lib/python3.9/site-packages/matplotlib/figure.py in draw(self, renderer)
2788
2789 self.patch.draw(renderer)
-> 2790 mimage._draw_list_compositing_images(
2791 renderer, self, artists, self.suppressComposite)
2792
~/.local/lib/python3.9/site-packages/matplotlib/image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
130 if not_composite or not has_images:
131 for a in artists:
--> 132 a.draw(renderer)
133 else:
134 # Composite any adjacent images together
~/.local/lib/python3.9/site-packages/astropy/visualization/wcsaxes/core.py in draw(self, renderer, **kwargs)
457 self.coords.frame._update_patch_path()
458
--> 459 super().draw(renderer, **kwargs)
460
461 self._drawn = True
~/.local/lib/python3.9/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
49 renderer.start_filter()
50
---> 51 return draw(artist, renderer, *args, **kwargs)
52 finally:
53 if artist.get_agg_filter() is not None:
~/.local/lib/python3.9/site-packages/matplotlib/_api/deprecation.py in wrapper(*inner_args, **inner_kwargs)
429 else deprecation_addendum,
430 **kwargs)
--> 431 return func(*inner_args, **inner_kwargs)
432
433 return wrapper
~/.local/lib/python3.9/site-packages/matplotlib/axes/_base.py in draw(self, renderer, inframe)
2919 renderer.stop_rasterizing()
2920
-> 2921 mimage._draw_list_compositing_images(renderer, self, artists)
2922
2923 renderer.close_group('axes')
~/.local/lib/python3.9/site-packages/matplotlib/image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
130 if not_composite or not has_images:
131 for a in artists:
--> 132 a.draw(renderer)
133 else:
134 # Composite any adjacent images together
~/.local/lib/python3.9/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
49 renderer.start_filter()
50
---> 51 return draw(artist, renderer, *args, **kwargs)
52 finally:
53 if artist.get_agg_filter() is not None:
~/.local/lib/python3.9/site-packages/matplotlib/image.py in draw(self, renderer, *args, **kwargs)
638 renderer.draw_image(gc, l, b, im, trans)
639 else:
--> 640 im, l, b, trans = self.make_image(
641 renderer, renderer.get_image_magnification())
642 if im is not None:
~/.local/lib/python3.9/site-packages/matplotlib/image.py in make_image(self, renderer, magnification, unsampled)
924 clip = ((self.get_clip_box() or self.axes.bbox) if self.get_clip_on()
925 else self.figure.bbox)
--> 926 return self._make_image(self._A, bbox, transformed_bbox, clip,
927 magnification, unsampled=unsampled)
928
~/.local/lib/python3.9/site-packages/matplotlib/image.py in _make_image(self, A, in_bbox, out_bbox, clip_bbox, magnification, unsampled, round_to_pixel_border)
477 vrange = np.array([vmin, vmax], dtype=scaled_dtype)
478
--> 479 A_scaled -= a_min
480 vrange -= a_min
481 # a_min and a_max might be ndarray subclasses so use
~/.local/lib/python3.9/site-packages/astropy/units/quantity.py in __array_ufunc__(self, function, method, *inputs, **kwargs)
493 return result
494
--> 495 return self._result_as_quantity(result, unit, out)
496
497 def _result_as_quantity(self, result, unit, out):
~/.local/lib/python3.9/site-packages/astropy/units/quantity.py in _result_as_quantity(self, result, unit, out)
533 # the output is of the correct Quantity subclass, as it was passed
534 # through check_output.
--> 535 out._set_unit(unit)
536 return out
537
AttributeError: 'numpy.ndarray' object has no attribute '_set_unit'
Even with quantity support enabled,
imshowresults in tracebacks like this. Astropy quantity objects don't have this problem. What do we need to do to fix it?