：file.write(str)方法get TypeError: write()参数必须是str，而不是Beautifulsoup

Question

我写了下面的代码：

from bs4 import BeautifulSoup
import sys # where is the sys module in the source code folder ?

try:
    import urllib.request as urllib2 
except ImportError:
    import urllib2


print (sys.argv) # 
print(type(sys.argv)) # 

#baseUrl = "https://ecurep.mainz.de.xxx.com/ae5/"
baseUrl = "http://www.bing.com"
baseUrl = "http://www.sohu.com/"
print(baseUrl)

url = baseUrl 
page = urllib2.urlopen(url) #urlopen is a function, function is also an object
soup = BeautifulSoup(page.read(), "html.parser") #NameError: name 'BeautifulSoup' is not defined

html_file = open("Output.html", "w")
soup_string = str(soup)
print(type(soup_string))
html_file.write(soup_string) # TypeError: write() argument must be str, not BeautifulSoup
html_file.close()

哪个编译器出现以下错误：

C:\hzg>py Py_logDownload2.py 1
['Py_logDownload2.py', '1']
<class 'list'>
http://www.sohu.com/
<class 'str'>
Traceback (most recent call last):
  File "Py_logDownload2.py", line 25, in <module>
    html_file.write(soup_string) # TypeError: write() argument must be str, not
BeautifulSoup
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python35\lib\encodings\
cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 376-377:
 character maps to <undefined>

但是soup_string显然是一个str，那么为什么编译器会给出第一个错误呢？也不知道为什么第二个会出现。

如果我将代码更改为：

baseUrl = "https://ecurep.mainz.de.xxx.com/ae5/"
#baseUrl = "http://www.bing.com"
#baseUrl = "http://www.sohu.com/"

它将编译并且没有错误。(我已将原名改为"xxx")。

有人能帮我调试一下吗？

更新:

我曾经编写Java代码，是Python的新手。在您的帮助下，我认为我在调试Python方面取得了一些进展:在调试Java时，总是尝试解决第一个错误；而在Python中，则尝试解决最后一个错误。

Answer 1

尝试用utf-8打开您的文件

import codecs
f = codecs.open("test", "w", "utf-8")

您可以忽略编码错误(不推荐)

f = codecs.open("test", "w", "utf-8", errors='ignore')