配置環境：
1. Windows10
2. python3.7
3. Django1.11.15
使用指令python manage.py runserver啓動Django時拋出以下異常：
D:\resp_work\py_1707A\days02\mysite>python manage.py runserver
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x000001F7DF32AB88>
Traceback (most recent call last):
File "C:\Program Files\Python37\lib\site-packages\django\utils\autoreload.py", line 228, in wrapper
fn(*args, **kwargs)
File "C:\Program Files\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 117, in inner_run
autoreload.raise_last_exception()
File "C:\Program Files\Python37\lib\site-packages\django\utils\autoreload.py", line 251, in raise_last_exception
six.reraise(*_exception)
File "C:\Program Files\Python37\lib\site-packages\django\utils\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "C:\Program Files\Python37\lib\site-packages\django\utils\autoreload.py", line 228, in wrapper
fn(*args, **kwargs)
File "C:\Program Files\Python37\lib\site-packages\django\__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\Program Files\Python37\lib\site-packages\django\apps\registry.py", line 85, in populate
app_config = AppConfig.create(entry)
File "C:\Program Files\Python37\lib\site-packages\django\apps\config.py", line 94, in create
module = import_module(entry)
File "C:\Program Files\Python37\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:\Program Files\Python37\lib\site-packages\django\contrib\admin\__init__.py", line 4, in <module>
from django.contrib.admin.filters import (
File "C:\Program Files\Python37\lib\site-packages\django\contrib\admin\filters.py", line 10, in <module>
from django.contrib.admin.options import IncorrectLookupParameters
File "C:\Program Files\Python37\lib\site-packages\django\contrib\admin\options.py", line 12, in <module>
from django.contrib.admin import helpers, widgets
File "C:\Program Files\Python37\lib\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
Performing system checks...
或者報錯：
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x0000024D934BDD08>
Traceback (most recent call last):
File "C:\Python37\lib\site-packages\django\utils\autoreload.py", line 228, in wrapper
fn(*args, **kwargs)
File "C:\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 116, in inner_run
autoreload.raise_last_exception()
File "C:\Python37\lib\site-packages\django\utils\autoreload.py", line 251, in raise_last_exception
six.reraise(*_exception)
File "C:\Python37\lib\site-packages\django\utils\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "C:\Python37\lib\site-packages\django\utils\autoreload.py", line 228, in wrapper
fn(*args, **kwargs)
File "C:\Python37\lib\site-packages\django\__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\Python37\lib\site-packages\django\apps\registry.py", line 85, in populate
app_config = AppConfig.create(entry)
File "C:\Python37\lib\site-packages\django\apps\config.py", line 94, in create
module = import_module(entry)
File "C:\Python37\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:\Python37\lib\site-packages\django\contrib\admin\__init__.py", line 4, in <module>
from django.contrib.admin.filters import (
File "C:\Python37\lib\site-packages\django\contrib\admin\filters.py", line 10, in <module>
from django.contrib.admin.options import IncorrectLookupParameters
File "C:\Python37\lib\site-packages\django\contrib\admin\options.py", line 13, in <module>
from django.contrib.admin import helpers, widgets
File "C:\Python37\lib\site-packages\django\contrib\admin\widgets.py", line 152
'%s=%s' % (k, v) for k, v in params.items(),
^
SyntaxError: Generator expression must be parenthesized
報錯原因：這些皆是由於本地的Django的版本不兼容性導致的！！！
解決方法：
在Windows系統中（找出這個需要修改的文件的位置直接依靠報錯中的位置即可，如：C:\Program Files\Python37\lib\site-packages\django\contrib\admin\widgets.py", line 151），最後：
把“'%s=%s' % (k, v) for k, v in params.items(),”中的後邊的逗號去掉就ok了
在Linux系統下，則如下操作：
Linux下啓動失敗跑拋出異常，和Windows下一樣，查看拋出異常的最後一個提示的路徑和行號。使用sudo編進該路徑下的該py文件，方法同上，保存就ok了
類似的文件路徑：
sudo vi /usr/local/lib/python3.7/site-packages/django/contrib/admin/widgets.p
related_url += '?' + '&'.join(
'%s=%s' % (k, v) for k, v in params.items(),
)
修改:
related_url += '?' + '&'.join(
'%s=%s' % (k, v) for k, v in params.items()
)
這樣就很好的解決了問題！！！！！！！