python的Flask框架使用host错误

z95634248

我在使用Flask框架时，运行app.run(host='0.0.0.0')时报错

1. from flask import Flask
   
2. 
   
3. app=Flask(__name__)
   
4. 
   
5. @app.route('/')
   
6. def index():
   
7.     return 'hessllo world'
   
8. 
   
9. if __name__=='__main__':
   
10.     app.run(host='0.0.0.0')

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这是他的错误信息

1. Traceback (most recent call last):
   
2.   File "C:/Users/dell/Desktop/new/python_pachong/chat_robat.py", line 21, in <module>
   
3.     app.run(host='0.0.0.0')
   
4.   File "C:\Users\dell\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 841, in run
   
5.     run_simple(host, port, self, **options)
   
6.   File "C:\Users\dell\AppData\Local\Programs\Python\Python36-32\lib\site-packages\werkzeug\serving.py", line 739, in run_simple
   
7.     inner()
   
8.   File "C:\Users\dell\AppData\Local\Programs\Python\Python36-32\lib\site-packages\werkzeug\serving.py", line 699, in inner
   
9.     fd=fd)
   
10.   File "C:\Users\dell\AppData\Local\Programs\Python\Python36-32\lib\site-packages\werkzeug\serving.py", line 593, in make_server
    
11.     passthrough_errors, ssl_context, fd=fd)
    
12.   File "C:\Users\dell\AppData\Local\Programs\Python\Python36-32\lib\site-packages\werkzeug\serving.py", line 504, in __init__
    
13.     HTTPServer.__init__(self, (host, int(port)), handler)
    
14.   File "C:\Users\dell\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 453, in __init__
    
15.     self.server_bind()
    
16.   File "C:\Users\dell\AppData\Local\Programs\Python\Python36-32\lib\http\server.py", line 138, in server_bind
    
17.     self.server_name = socket.getfqdn(host)
    
18.   File "C:\Users\dell\AppData\Local\Programs\Python\Python36-32\lib\socket.py", line 673, in getfqdn
    
19.     hostname, aliases, ipaddrs = gethostbyaddr(name)
    
20. UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc9 in position 0: invalid continuation byte
    

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有没有大佬帮忙看一下，拜托了

z95634248

应该是最后一个的代码编码错误，但这个原因是什么呢