python - pandas出毛病了，重装也不行

Traceback (most recent call last):
  File "C:\Users\Administrator\AppData\Roaming\Python\Python36\site-packages\pandas\indexes\base.py", line 2134, in get_loc
    return self._engine.get_loc(key)
  File "pandas\index.pyx", line 132, in pandas.index.IndexEngine.get_loc (pandas\index.c:4433)
  File "pandas\index.pyx", line 154, in pandas.index.IndexEngine.get_loc (pandas\index.c:4279)
  File "pandas\src\hashtable_class_helper.pxi", line 732, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13742)
  File "pandas\src\hashtable_class_helper.pxi", line 740, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13696)
KeyError: 0

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/Administrator/PycharmProjects/untitled/test.py", line 5, in 
    code = today_data[0]
  File "C:\Users\Administrator\AppData\Roaming\Python\Python36\site-packages\pandas\core\frame.py", line 2059, in __getitem__
    return self._getitem_column(key)
  File "C:\Users\Administrator\AppData\Roaming\Python\Python36\site-packages\pandas\core\frame.py", line 2066, in _getitem_column
    return self._get_item_cache(key)
  File "C:\Users\Administrator\AppData\Roaming\Python\Python36\site-packages\pandas\core\generic.py", line 1386, in _get_item_cache
    values = self._data.get(item)
  File "C:\Users\Administrator\AppData\Roaming\Python\Python36\site-packages\pandas\core\internals.py", line 3543, in get
    loc = self.items.get_loc(item)
  File "C:\Users\Administrator\AppData\Roaming\Python\Python36\site-packages\pandas\indexes\base.py", line 2136, in get_loc
    return self._engine.get_loc(self._maybe_cast_indexer(key))
  File "pandas\index.pyx", line 132, in pandas.index.IndexEngine.get_loc (pandas\index.c:4433)
  File "pandas\index.pyx", line 154, in pandas.index.IndexEngine.get_loc (pandas\index.c:4279)
  File "pandas\src\hashtable_class_helper.pxi", line 732, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13742)
  File "pandas\src\hashtable_class_helper.pxi", line 740, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:13696)
KeyError: 0

这个错误我也是一脸懵，安装各种依赖库，卸载重装都不行，求大神指导