使用Pycharm創建Django項目無法創建app.

Python3.7使用Django1.11.7創建Django項目報以下錯誤時:

在使用Pycharm創建Django項目報以下錯誤時:

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "F:\Python_Envs\sass\lib\site-packages\django\core\management\__init__.py", line 364, in execute_from_command_line
    utility.execute()
  File "F:\Python_Envs\sass\lib\site-packages\django\core\management\__init__.py", line 338, in execute
    django.setup()
  File "F:\Python_Envs\sass\lib\site-packages\django\__init__.py", line 27, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "F:\Python_Envs\sass\lib\site-packages\django\apps\registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "F:\Python_Envs\sass\lib\site-packages\django\apps\config.py", line 94, in create
    module = import_module(entry)
  File "f:\python376\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 "F:\Python_Envs\sass\lib\site-packages\django\contrib\admin\__init__.py", line 4, in <module>
    from django.contrib.admin.filters import (
  File "F:\Python_Envs\sass\lib\site-packages\django\contrib\admin\filters.py", line 10, in <module>
    from django.contrib.admin.options import IncorrectLookupParameters
  File "F:\Python_Envs\sass\lib\site-packages\django\contrib\admin\options.py", line 12, in <module>
    from django.contrib.admin import helpers, widgets
  File "F:\Python_Envs\sass\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

解決辦法:

可以發現最后一行提示說是語法錯誤，說是生成器表達式有問題，那具體的報錯行內容是 '%s=%s' % (k, v) for k, v in params.items(), 將最后一行的 ' ，‘去除即可

ps：如果是pycharm中修改的話，由於這個文件是源碼，還要注意提示框中選擇 I want to edit this file anyway 。