Question

我有一个数据框，其中一列是列表列表。我想删除该listoflist列中的数字。我该怎么办？

mylist = [['302','is','my','apartment','number'],['I','wake','up','at','7','am'],['I','spent','10','dollars','for','lunch']]

[word for word in mylist if word.isalpha()]

我尝试了上面的代码，但返回“ AttributeError：'list'对象没有属性'isalpha'”

我的预期结果：

[['is','my','apartment','number'],['I','wake','up','at','am'],['I','spent','dollars','for','lunch']]

感谢您的帮助！

Answer 1

您想将您写的内容应用于my list中的每个列表。

Answer 2

您必须编写一个嵌套的理解列表：

mylist = [['302','is','my','apartment','number'],['I','wake','up','at','7','am'],['I','spent','10','dollars','for','lunch']]

print([[word for word in arr if word.isalpha()] for arr in mylist])

输出

[['is', 'my', 'apartment', 'number'],
 ['I', 'wake', 'up', 'at', 'am'],
 ['I', 'spent', 'dollars', 'for', 'lunch']]

如何删除列表中的数字？

2 个答案: