[파이써닉한 코딩] 헷갈리는 이중중첩문

new_words = [ word for word_list in words for word in word_list if len(word) > 4]

for i in v: 
    for j in i: 
        print(j)

[j for i in v for j in i]

출처: https://somjang.tistory.com/entry/Python-이중-for-문-한-줄로-작성하는-방법

 

 

출처: https://bigdaheta.tistory.com/14