django1.11 启动错误：Generator expression must be parenthesized

错误信息：

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x10f03b8c8>
Traceback (most recent call last):
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/utils/autoreload.py",line 227,in wrapper
    fn(*args,**kwargs)
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/core/management/commands/runserver.py",line 117,in inner_run
    autoreload.raise_last_exception()
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/utils/autoreload.py",line 250,in raise_last_exception
    six.reraise(*_exception)
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/utils/six.py",line 685,in reraise
    raise value.with_traceback(tb)
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/utils/autoreload.py",**kwargs)
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/__init__.py",line 27,in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/apps/registry.py",line 85,in populate
    app_config = AppConfig.create(entry)
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/apps/config.py",line 94,in create
    module = import_module(entry)
  File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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 "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/contrib/admin/__init__.py",line 4,in <module>
    from django.contrib.admin.filters import (
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/contrib/admin/filters.py",line 10,in <module>
    from django.contrib.admin.options import IncorrectLookupParameters
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/contrib/admin/options.py",line 12,in <module>
    from django.contrib.admin import helpers,widgets
  File "/Users/yanlin/PycharmProjects/djangoPro/my_django/venv/lib/python3.7/site-packages/django/contrib/admin/widgets.py",line 151
    ‘%s=%s‘ % (k,v) for k,v in params.items(),^
SyntaxError: Generator expression must be parenthesized

解决方法：

找到对应文件

 

 

找到出错语句：

去掉末尾那个逗号即可。