IndexError: single positional indexer is out-of-bounds

[zhantaotao]

运行update_profolio_data出错：
File "D:\Anaconda3\lib\site-packages\pandas\core\indexing.py", line 1444, in _validate_integer
raise IndexError("single positional indexer is out-of-bounds")

IndexError: single positional indexer is out-of-bounds