keyerror：0虽然索引从0开始

Question

这是我的数据集。

我基本上想要单词列表中每个列表中的单词数量。这是我的代码

for ind,word in enumerate(brand6['words']):
  brand6['len']=len(brand6[ind][word])    

但是，我遇到这样的错误：

  Traceback (most recent call last):

  File "C:\Users\darshini.nagaraj\Anaconda3\lib\site-packages\pandas\core\indexes\base.py", line 2646, in get_loc
    return self._engine.get_loc(key)

  File "pandas\_libs\index.pyx", line 111, in pandas._libs.index.IndexEngine.get_loc

  File "pandas\_libs\index.pyx", line 138, in pandas._libs.index.IndexEngine.get_loc

  File "pandas\_libs\hashtable_class_helper.pxi", line 1618, in 
pandas._libs.hashtable.PyObjectHashTable.get_item


  File "pandas\_libs\hashtable_class_helper.pxi", line 1626, in 
pandas._libs.hashtable.PyObjectHashTable.get_item

KeyError: 0
    During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "C:\Users\darshini.nagaraj\Desktop\example.py", line 28, in <module>
print((brand6[ind][word]))

  File "C:\Users\darshini.nagaraj\Anaconda3\lib\site-packages\pandas\core\frame.py", line 2800, in __getitem__
    indexer = self.columns.get_loc(key)

  File "C:\Users\darshini.nagaraj\Anaconda3\lib\site-packages\pandas\core\indexes\base.py", line 2648, in get_loc
    return self._engine.get_loc(self._maybe_cast_indexer(key))

  File "pandas\_libs\index.pyx", line 111, in pandas._libs.index.IndexEngine.get_loc

 File "pandas\_libs\index.pyx", line 138, in pandas._libs.index.IndexEngine.get_loc

  File "pandas\_libs\hashtable_class_helper.pxi", line 1618, in 
pandas._libs.hashtable.PyObjectHashTable.get_item

  File "pandas\_libs\hashtable_class_helper.pxi", line 1626, in 
pandas._libs.hashtable.PyObjectHashTable.get_item

KeyError: 0    

我已经为此工作了3天。任何帮助都感激不尽！！ 预先感谢！

Answer 1

尝试

word_count=[]
for i in range(brand6.shape[0]):
   word_count.append(len(brand6['words'][i]))
brand6['word_count']=word_count

最后一行将在您的数据集中创建一个新列作为'word_count'。