用python替换字符串中的单词

Question

我是一个非常初级的程序员，他正在寻找一些可能非常简单的问题的帮助。我正在尝试编写一个程序来读取.txt文件，然后用'xxxxx'替换其中的'e'。

这是我到目前为止有：

def replace_ewords(text): 
    ntext = text.replace('e', 'xxxxx') 

def main(): 
    filename = "gb.txt" 
    text = readfile(filename) 
    new_text = replace_ewords(text) 
    print(new_text) 

main() 

可能有人能帮我解决这个任何给我任何critques /指针？

Answer 1

def replace_ewords(text): 
    words = [] 
    text = text.split(' ') 
    for word in text: 
     if "e" in text: 
      words.append("x"*len(text)) 
     else: 
      words.append(text) 
    return " ".join(words) 

Answer 2

with open('filename') as f: # Better way to open files :) 
    line_list = [] 
    for line in file: # iterate line by line 
     word_list = [] 
     for word in line.split() # split each line into words 
      if 'e' in word: 
       word = 'xxxxx'  # replace content if word has 'e' 
      word_list.append(word) # create new list for the word content in new file 
     line_list.append(' '.join(word_list)) # list of modified line 

# write this content to the file 

的循环

一号线可以写在列表理解的形式为：

[' '.join([('xxxx' if 'e' in word else word) for word in line]) for line in file.readlines()] 

Answer 3

一个班轮：

print "\n".join([" ".join([[word, "xxx"]["e" in word] for word in line.split()]) for line in open("file").readlines()])