无法删除日期列KeyError："[' Date ']在轴中找不到开发者社区

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df2 = df.copy()   # make a copy of the dataframe object
df2.drop(columns = ['Date'], inplace=True)   # drop the Date columns

Date                           datetime64[ns]
Sales                                 float64
Budget                                float64
PPV                                   float64
SOPPV                                 float64
dtype: object

KeyError                                  Traceback (most recent call last)
<ipython-input-81-22d4dafeb1cb> in <module>
----> 1 df2 = df.drop(columns = ['Date'], inplace=True)
~/opt/anaconda3/lib/python3.7/site-packages/pandas/core/frame.py in drop(self, labels, axis, index, columns, level, inplace, errors)
   3995             level=level,
   3996             inplace=inplace,
-> 3997             errors=errors,
   3998         )
~/opt/anaconda3/lib/python3.7/site-packages/pandas/core/generic.py in drop(self, labels, axis, index, columns, level, inplace, errors)
   3934         for axis, labels in axes.items():
   3935             if labels is not None:
-> 3936                 obj = obj._drop_axis(labels, axis, level=level, errors=errors)
   3938         if inplace:
~/opt/anaconda3/lib/python3.7/site-packages/pandas/core/generic.py in _drop_axis(self, labels, axis, level, errors)
   3968                 new_axis = axis.drop(labels, level=level, errors=errors)
   3969             else:
-> 3970                 new_axis = axis.drop(labels, errors=errors)
   3971             result = self.reindex(**{axis_name: new_axis})
~/opt/anaconda3/lib/python3.7/site-packages/pandas/core/indexes/base.py in drop(self, labels, errors)
   5016         if mask.any():

问 无法删除日期列KeyError："[' Date ']在轴中找不到