KeyError：导入 matplotlib.pyplot as plt 时的“比例”

Question

当我尝试运行 import matplotlib.pyplot 时，出现 KeyError: 'scale'

我重新下载了 matplotlib 然后运行代码但仍然遇到相同的错误。

我还打开了新的 Jupyter 笔记本，只运行“import matplotlib.pyplot as plt”，但仍然遇到相同的错误。仅运行“import matplotlib”时，我没有收到任何错误。

如果您能帮我找出导致错误的原因，我将不胜感激。

import matplotlib.pyplot as plt
%matplotlib inline

city_pay_top50.plot(kind='bar', x='customer_city', y='payment_value')
plt.title('Cities with top 50 revenues')

plt.show()

KeyError                                  Traceback (most recent call last)
<ipython-input-6-07805b46bb32> in <module>
----> 1 import matplotlib.pyplot as plt
      2 #%matplotlib inline
      3 
      4 plt.bar(city_pay_top50['customer_city'], city_pay_top50['payment_value'])
      5 #city_pay_top50.plot(kind='bar', x='customer_city', y='payment_value')

~/opt/anaconda3/lib/python3.7/site-packages/matplotlib-3.2.1+1847.gfc8a2fa24-py3.7-macosx-10.9-x86_64.egg/matplotlib/pyplot.py in <module>
     41 from matplotlib import docstring
     42 from matplotlib.backend_bases import FigureCanvasBase, MouseButton
---> 43 from matplotlib.figure import Figure, figaspect
     44 from matplotlib.gridspec import GridSpec
     45 from matplotlib import rcParams, rcParamsDefault, get_backend, rcParamsOrig

~/opt/anaconda3/lib/python3.7/site-packages/matplotlib-3.2.1+1847.gfc8a2fa24-py3.7-macosx-10.9-x86_64.egg/matplotlib/figure.py in <module>
     15 
     16 import matplotlib as mpl
---> 17 from matplotlib import docstring, projections
     18 from matplotlib import __version__ as _mpl_version
     19 

~/opt/anaconda3/lib/python3.7/site-packages/matplotlib-3.2.1+1847.gfc8a2fa24-py3.7-macosx-10.9-x86_64.egg/matplotlib/projections/__init__.py in <module>
      2 from .geo import AitoffAxes, HammerAxes, LambertAxes, MollweideAxes
      3 from .polar import PolarAxes
----> 4 from mpl_toolkits.mplot3d import Axes3D
      5 
      6 

~/opt/anaconda3/lib/python3.7/site-packages/mpl_toolkits/mplot3d/__init__.py in <module>
----> 1 from .axes3d import Axes3D

~/opt/anaconda3/lib/python3.7/site-packages/mpl_toolkits/mplot3d/axes3d.py in <module>
     40 
     41 
---> 42 class Axes3D(Axes):
     43     """
     44     3D axes object.

~/opt/anaconda3/lib/python3.7/site-packages/mpl_toolkits/mplot3d/axes3d.py in Axes3D()
     50     def __init__(
     51             self, fig, rect=None, *args,
---> 52             azim=-60, elev=30, zscale=None, sharez=None, proj_type='persp',
     53             **kwargs):
     54         """

~/opt/anaconda3/lib/python3.7/site-packages/matplotlib-3.2.1+1847.gfc8a2fa24-py3.7-macosx-10.9-x86_64.egg/matplotlib/docstring.py in dedent_interpd(func)
     78     """Dedent *func*'s docstring, then interpolate it with ``interpd``."""
     79     func.__doc__ = inspect.getdoc(func)
---> 80     return interpd(func)

~/opt/anaconda3/lib/python3.7/site-packages/matplotlib-3.2.1+1847.gfc8a2fa24-py3.7-macosx-10.9-x86_64.egg/matplotlib/docstring.py in __call__(self, func)
     38     def __call__(self, func):
     39         if func.__doc__:
---> 40             func.__doc__ %= self.params
     41         return func
     42 

KeyError: 'scale'

Answer 1

对于那些可能遇到与我相同错误的人，通过将 Jupyter Notebook 的版本更新到我的情况下的最新版本来解决问题。