pandas报AttributeError: ‘DataFrame‘ object has no attribute ‘ix‘

In actual operation, sometimes it is necessary to save the collected data or the analyzed data in excel, and the column names are sorted according to the execution. At first, I used the ix method of DataFrame to achieve the expectation, but recently I found that this method function Is removed, the operation will throw the following error:

Traceback (most recent call last):
  File "test.py", line 149, in <module>
    test()
  File "test.py", line 143, in test
    result_data, cols = add_excel(sheet_list, cols, excels, self.path)
  File "test.py", line 47, in add_excel
    DataFrame = DataFrame.ix[:, cols]
  File "E:\project\test\venv\lib\site-packages\pandas\core\generic.py", line 5273, in __getattr__
    return object.__getattribute__(self, name)
AttributeError: 'DataFrame' object has no attribute 'ix'

root cause

Due to the installation of a higher version of pandas, some deprecated methods and functions have been officially removed. For details, please refer to:
Click to view the official removal of deprecated functions

Solution

According to official instructions, ix has been removed and can be replaced by .iloc:

# DataFrame.ix[:, cols] # 已移除，不推荐使用
DataFrame.iloc[:, cols] # 列按指定下标排序 cols=【0,2,1】 
DataFrame.loc[:, col_header] # 列按指定下标排序 cols=【'col','col1'】