用pandas中的reset_index报错是为什么？

[笙箫sx]

代码如下，我希望把原来的索引时间去掉，改成股票代码Stkcd：

test=stock_daily[['Stkcd', 'Dretnd']]
print(date[0])
slice=test[str(date[0])].reset_index()
print(slice)
del slice['Trddt']
print(slice.reset_index('Stkcd',drop=True).T)

运行结果：
2000-07-10 00:00:00
Trddt Stkcd Dretnd
0 2000-07-10 600230 0.020356
1 2000-07-10 600738 -0.013671
Traceback (most recent call last):
File "<input>", line 6, in <module>
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pandas/core/frame.py", line 3341, in reset_index
level = [self.index._get_level_number(lev) for lev in level]
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pandas/core/frame.py", line 3341, in <listcomp>
level = [self.index._get_level_number(lev) for lev in level]
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 1620, in _get_level_number
self._validate_index_level(level)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 1617, in _validate_index_level
(level, self.name))
KeyError: 'Level Stkcd must be same as name (None)'

[Luenci379]

建议你可以 直接set_index（'Stkcd',drop=True）