堆棧生成器

Question

爲了標記文件，我有一個生成器將文件的空白分隔部分吐出，忽略換行符。

def parts(filename): 
    file = open(filename, 'r') 
    for line in file: 
    for part in line.split(): 
     yield part 

現在，我想編寫一個發電機理解 - 什麼沒有工作是：

p = (part for part in line.split() for line in file) 

或

p = (part for part in (line.split() for line in file)) 

後者吐出來的是分裂線而不是分割線的部分

Answer 1

使用此語法：

p = (part for line in file for part in line.split()) 

生成器表達式中最外面的for循環是左邊的那個。

Answer 2

(word for line in input_file for word in line.split())