我在我的文件中写了相同名称的日期列，但它仍然是错误

问：

我查了一下这个： KeyError： 'Date' 我该如何修复它？ 我想我写了日期列的名称，代表日期与我的文件相同，但它仍然是错误的

这是我的代码：

!pip install yfinance
import pandas as pd
import numpy as np
from sklearn.ensemble import RandomForestRegressor
from sklearn.metrics import mean_squared_error
import matplotlib.pyplot as plt
import yfinance as yf

# Load your historical data into a DataFrame (make sure to have a 'Date' and 'Close' column)
# You may need to preprocess your data to have the required columns
data = yf.download("^SET.BK", start="2012-01-01", end="2023-07-01")
date_column_name = 'Date'
close_column_name = 'Close'


data[date_column_name] = pd.to_datetime(data[date_column_name])

这是错误

KeyError                                  Traceback (most recent call last)
/usr/local/lib/python3.10/dist-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance)
   3801             try:
-> 3802                 return self._engine.get_loc(casted_key)
   3803             except KeyError as err:

4 frames
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyObjectHashTable.get_item()

pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyObjectHashTable.get_item()

KeyError: 'Date'

The above exception was the direct cause of the following exception:

KeyError                                  Traceback (most recent call last)
/usr/local/lib/python3.10/dist-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance)
   3802                 return self._engine.get_loc(casted_key)
   3803             except KeyError as err:
-> 3804                 raise KeyError(key) from err
   3805             except TypeError:
   3806                 # If we have a listlike key, _check_indexing_error will raise