python - 从两个不同大小的列创建两列

Question

我正在尝试从两个列表创建两列。

我尝试使用 zip 构建 DataFrame 并插入列表，但较大的列表被切断。

import pandas as pd

list1 = ['new book revealing', 'library for topic modelling']
list2 = ['potentially embarrassing', 'several international', 'daily newspaper'] 
df = pd.DataFrame(list(zip(list1, list2)), columns =['list1', 'list2']) 

我的输出:

                 list1            list2
0   new book revealing            potentially embarrassing
1   library for topic modelling   several international

良好的输出:

                 list1            list2
0   new book revealing            potentially embarrassing
1   library for topic modelling   several international 
2                                 daily newspaper

Answer 1

一种方法是使用zip_longest :

import itertools
pd.DataFrame(itertools.zip_longest(list1, list2), columns =['list1', 'list2']) 

---

                        list1                     list2
0           new book revealing  potentially embarrassing
1  library for topic modelling     several international
2                         None           daily newspaper