python - 由 <function check_errors.<locals>.wrapper at 0x03A69780> 启动的线程中出现未处理的异常

Question

我目前正在学习 Python 类(class)并学习如何使用 Django。我刚刚创建了 mysite，目前正在尝试测试 Django 服务器。

我在cmd中运行了以下命令，输出如下。

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

希望大家能给我一些建议，谢谢! :(

Answer 1

看来您需要更新 Django 版本。看Here 。

尝试删除现有版本的 django，

pip uninstall Django

然后使用重新安装

pip install Django==1.11.17

希望这能解决问题。