Error while Running Python manage.py runserver comman

Question

I have started learning django this was my first tutorial. First i ran django-admin startproject This command works according to tutorial but when I run this command python manage.py runserver Following Error Occurs but not in tutorial video

*Watching for file changes with StatReloader  
Performing system checks...

System check identified no issues (0 silenced).  
September 27, 2019 - 18:01:04  
Django version 2.2.5, using settings 'first.settings'  
Starting development server at http://127.0.0.1:8000/  
Quit the server with CTRL-BREAK.  
Exception in thread django-main-thread:

Traceback (most recent call last): File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\threading.py", line 917, in _bootstrap_inner self.run() File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\threading.py", line 865, in run self._target(*self._args, **self._kwargs) File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper fn(*args, **kwargs) File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 139, in inner_run ipv6=self.use_ipv6, threading=threading, server_cls=self.server_cls) File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\servers\basehttp.py", line 203, in run httpd = httpd_cls(server_address, WSGIRequestHandler, ipv6=ipv6) File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\servers\basehttp.py", line 67, in init
super().init(*args, **kwargs) File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\socketserver.py", line 449, in init self.server_bind() File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\wsgiref\simple_server.py", line 50, in server_bind HTTPServer.server_bind(self) File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\http\server.py", line 139, in server_bind self.server_name = socket.getfqdn(host) File "C:\Users\MuBasHer\AppData\Local\Programs\Python\Python37\lib\socket.py", line 676, in getfqdn hostname, aliases, ipaddrs = gethostbyaddr(name) UnicodeDecodeError: 'utf-8' codec can't decode byte 0xae in position 6: invalid start byte *

If you run it like this what happens: python manage.py runserver 127.0.0.1:8000 — Mark Barrett, Sep 27 '19 at 13:32
What is your hostname? Does it have special characters in it? — RemcoGerlich, Sep 27 '19 at 13:34
If you have aliases for your localhost in your host file with characters that are non utf-8 you probably will get this error. — Mark Barrett, Sep 27 '19 at 13:40
@RemcoGerlich i just run this command it give me error but not in tutorial i simply just created project and then run python manage.py runserver command and it gave me error but not in tutorial — Mubasher Ali, Sep 27 '19 at 13:40
@MarkBarrett just tell me how to solve i will do it which file i have to edit? — Mubasher Ali, Sep 27 '19 at 13:41
@MubasherAli: the error is the very last line: `getfqdn hostname, aliases, ipaddrs = gethostbyaddr(name) UnicodeDecodeError: 'utf-8' codec can't decode byte 0xae in position 6: invalid start byte *`. Maybe the problem is that your hostname is not UTF8 and Python expects it to be. So that is why I ask what your hostname is. — RemcoGerlich, Sep 27 '19 at 13:43
Your hosts file is located here: C:\Windows\System32\Drivers\etc\hosts. If you open that with Notepad and see any special characters in the aliases thats probably the issue. What is listed as the alias for 127.0.0.1 in it? — Mark Barrett, Sep 27 '19 at 13:45
@MarkBarrett (# 127.0.0.1 localhost ::1 localhost) this is the host file contain excluding parenthesis — Mubasher Ali, Sep 27 '19 at 13:52
If you type hostname into the command prompt and press enter what do you get? — Mark Barrett, Sep 27 '19 at 13:55
Okay, as you see the symbol beside the r (looks like an R in a circle), this isn't allowed as a hostname as it is not utf-8. It needs to be changed. — Mark Barrett, Sep 27 '19 at 13:57
https://www.howtogeek.com/howto/windows-vista/change-your-computer-name-in-windows-vista/ — Mark Barrett, Sep 27 '19 at 13:59
i tried but it says your reputation point less than 15 it recorded just — Mubasher Ali, Sep 27 '19 at 14:30

score 0 · Answer 1 · answered Sep 27 '19 at 14:19

0

You need to change hostname in Windows to remove any not UTF-8 characters.

answered Sep 27 '19 at 14:19

Mark Barrett

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score 0 · Answer 2 · edited Dec 12 '19 at 14:17

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first of all, I assume you are using the windows command-line tool as your shell.

If so, then run the command-line tool as administrator and cd into your project directory, switch into your working(virtual environment), then run the python manage.py runserver command again.

With these few steps you can startup your development server. thanks

edited Dec 12 '19 at 14:17

Reznik

2,663
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answered Dec 12 '19 at 11:59

Edrose

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Error while Running Python manage.py runserver comman

2 Answers2