Python - TypeError: write() argument must be str, not bytes

Python - 类型错误：write()参数必须是str而不是bytes。

我从Python收到了一个错误信息。这是一个从牛津在线词典中提取音标符号的代码。

Traceback (most recent call last): File

\"C:\\Download\\Oxford_PhoneticSymbol\\Oxford_PhoneticSymbol.py\", line 24,

in

fw.write((result + \"\\n\").encode(\"utf-8\")) TypeError: write() argument must be str, not bytes

原始来源： https://my.oschina.net/sfshine/blog/3076588

# -*- coding: UTF-8 -*-
import requests
import time
from bs4 import BeautifulSoup
f = open('./words.txt')
fw = open('./result.txt','a')
line = f.readline()
index = 0
while line:
    index = index+1
    url = "https://www.oxfordlearnersdictionaries.com/definition/english/" + line.strip()
    print(str(index) + ":" + url)
    wbdata = requests.get(url,headers={'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.75 Safari/537.36'}).text
    soup = BeautifulSoup(wbdata,'html.parser')
    news_titles = soup.select("span.pron-g > span.phon")
    # print(news_titles)
    result = ''
    for n in news_titles:   
        title = n.get_text()    
        if 'NAmE' in title:
            result += '['+title.replace('NAmE','').replace('//','') + ']'
    print(result)  
    fw.write((result + "
").encode("utf-8"))
    line = f.readline()
    time.sleep(0.1)
fw.close()
f.close()

如同所需，我已将两个txt文件放在同一目录中。我在words.txt中填写了几个单词，并将result.txt保留为空白，但我收到了错误信息。

(words.txt, saved as UTF-8)
source
technic
resource
power
box
created
computer
charged
learned

有什么想法如何修复这个问题吗？