用python替換字符串中的單詞

Question

我是一個非常初級的程序員，他正在尋找一些可能非常簡單的問題的幫助。我正在嘗試編寫一個程序來讀取.txt文件，然後用'xxxxx'替換其中的'e'。

這是我到目前爲止有：

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() 

可能有人能幫我解決這個任何給我任何critques /指針？

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 

的循環

一號線可以寫在列表理解的形式爲：

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

Answer 3

一個班輪：

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