python3中的pandas删除部分数据，报错“Int64HashTable.get_item”

Posted 2023-02-18 langb2014

删除操作需谨慎！！！！！！！

问题记录一下，

File "pandas\\core\\series.py", line 766, in __getitem__
    result = self.index.get_value(self, key)
  File "\\pandas\\core\\indexes\\base.py", line 3103, in get_value
    tz=getattr(series.dtype, 'tz', None))
  File "pandas\\_libs\\index.pyx", line 106, in pandas._libs.index.IndexEngine.get_value
  File "pandas\\_libs\\index.pyx", line 114, in pandas._libs.index.IndexEngine.get_value
  File "pandas\\_libs\\index.pyx", line 162, in pandas._libs.index.IndexEngine.get_loc
  File "pandas\\_libs\\hashtable_class_helper.pxi", line 958, in pandas._libs.hashtable.Int64HashTable.get_item
  File "pandas\\_libs\\hashtable_class_helper.pxi", line 964, in pandas._libs.hashtable.Int64HashTable.get_item

找了很多原因都不对，就是因为有一块代码对数据进行了删除，导致索引不在了，这时候就需要重新排一下索引。

#重新定义索引，才能支持遍历
matrix_df = matrix_df.reset_index(drop=True)

不明白的，请留言。