[FIXED] Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x03A69780>

Issue

I am currently undergoing a python course and learning how to use Django. I have just created mysite and am currently trying to test the Django server.

I ran the command below in the cmd and the output is as follows.

C:\Users\Win10\Desktop\Python\Newsite\mysite>python manage.py runserver

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x03A69780> 

Traceback (most recent call last):   
File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\utils\autoreload.py", line 227, in wrapper
        fn(*args, **kwargs)   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\core\management\commands\runserver.py", line 117, in inner_run
        autoreload.raise_last_exception()   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\utils\autoreload.py", line 250, in raise_last_exception
        six.reraise(*_exception)   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\utils\six.py", line 685, in reraise
        raise value.with_traceback(tb)   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\utils\autoreload.py", line 227, in wrapper
        fn(*args, **kwargs)   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\__init__.py", line 27, in setup
        apps.populate(settings.INSTALLED_APPS)   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\apps\registry.py", line 85, in populate
        app_config = AppConfig.create(entry)   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\apps\config.py", line 94, in create
        module = import_module(entry)   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\importlib\__init__.py", line 127, in import_module
        return _bootstrap._gcd_import(name[level:], package, level)   

File "<frozen importlib._bootstrap>", line 1006, in _gcd_import   
File "<frozen importlib._bootstrap>", line 983, in _find_and_load   
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked  
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked   
File "<frozen importlib._bootstrap_external>", line 728, in exec_module   
File "<frozen importlib._bootstrap>", line 219, in
    _call_with_frames_removed   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\contrib\admin\__init__.py", line 4, in <module>
        from django.contrib.admin.filters import (   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\contrib\admin\filters.py", line 10, in <module>
        from django.contrib.admin.options import IncorrectLookupParameters   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\contrib\admin\options.py", line 12, in <module>
        from django.contrib.admin import helpers, widgets   

File "C:\Users\Win10\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django-1.11.2-py3.7.egg\django\contrib\admin\widgets.py", line 151
        '%s=%s' % (k, v) for k, v in params.items(),
        ^ 

SyntaxError: Generator expression must be parenthesized

Hope that i can be advised on this thank you! :(

Solution

Looks like you need to update your Django version. Look Here.

Try removing the existing version of django,

pip uninstall Django

and then reinstall using

pip install Django==1.11.17

Hopefully, that should fix the problem.

Answered By - Vineeth Sai