---------------------------------------------------------------------------

AttributeError                            Traceback (most recent call last)

[<ipython-input-5-3134bfb5f7d5>](https://localhost:8080/#) in <module>
      1 import matplotlib.pyplot as plt
      2 
----> 3 fig, axs = plt.subplots(ncols=2, width_ratios=[1, 3])
      4 
      5                         #gridspec_kw=dict(width_ratios=[1, 3]))

8 frames

[/usr/local/lib/python3.7/dist-packages/matplotlib/pyplot.py](https://localhost:8080/#) in subplots(nrows, ncols, sharex, sharey, squeeze, subplot_kw, gridspec_kw, **fig_kw)
   1451 
   1452     """
-> 1453     fig = figure(**fig_kw)
   1454     axs = fig.subplots(nrows=nrows, ncols=ncols, sharex=sharex, sharey=sharey,
   1455                        squeeze=squeeze, subplot_kw=subplot_kw,

[/usr/local/lib/python3.7/dist-packages/matplotlib/pyplot.py](https://localhost:8080/#) in figure(num, figsize, dpi, facecolor, edgecolor, frameon, FigureClass, clear, **kwargs)
    807             num, figsize=figsize, dpi=dpi,
    808             facecolor=facecolor, edgecolor=edgecolor, frameon=frameon,
--> 809             FigureClass=FigureClass, **kwargs)
    810         fig = manager.canvas.figure
    811         if fig_label:

[/usr/local/lib/python3.7/dist-packages/matplotlib/pyplot.py](https://localhost:8080/#) in new_figure_manager(*args, **kwargs)
    323     """Create a new figure manager instance."""
    324     _warn_if_gui_out_of_main_thread()
--> 325     return _get_backend_mod().new_figure_manager(*args, **kwargs)
    326 
    327 

[/usr/local/lib/python3.7/dist-packages/matplotlib/backend_bases.py](https://localhost:8080/#) in new_figure_manager(cls, num, *args, **kwargs)
   3491         from matplotlib.figure import Figure
   3492         fig_cls = kwargs.pop('FigureClass', Figure)
-> 3493         fig = fig_cls(*args, **kwargs)
   3494         return cls.new_figure_manager_given_figure(num, fig)
   3495 

[/usr/local/lib/python3.7/dist-packages/matplotlib/figure.py](https://localhost:8080/#) in __init__(self, figsize, dpi, facecolor, edgecolor, linewidth, frameon, subplotpars, tight_layout, constrained_layout, layout, **kwargs)
   2298             %(Figure:kwdoc)s
   2299         """
-> 2300         super().__init__(**kwargs)
   2301 
   2302         if layout is not None:

[/usr/local/lib/python3.7/dist-packages/matplotlib/figure.py](https://localhost:8080/#) in __init__(self, **kwargs)
    214         self.stale = True
    215         self.suppressComposite = None
--> 216         self.set(**kwargs)
    217 
    218     def _get_draw_artists(self, renderer):

[/usr/local/lib/python3.7/dist-packages/matplotlib/artist.py](https://localhost:8080/#) in <lambda>(self, **kwargs)
    115             return
    116 
--> 117         cls.set = lambda self, **kwargs: Artist.set(self, **kwargs)
    118         cls.set.__name__ = "set"
    119         cls.set.__qualname__ = f"{cls.__qualname__}.set"

[/usr/local/lib/python3.7/dist-packages/matplotlib/artist.py](https://localhost:8080/#) in set(self, **kwargs)
   1165         # module.
   1166         kwargs = cbook.normalize_kwargs(kwargs, self)
-> 1167         return self.update(kwargs)
   1168 
   1169     @contextlib.contextmanager

[/usr/local/lib/python3.7/dist-packages/matplotlib/artist.py](https://localhost:8080/#) in update(self, props)
   1065                     func = getattr(self, f"set_{k}", None)
   1066                     if not callable(func):
-> 1067                         raise AttributeError(f"{type(self).__name__!r} object "
   1068                                              f"has no property {k!r}")
   1069                     ret.append(func(v))

AttributeError: 'Figure' object has no property 'width_ratios'