使用Pycharm创建Django项目无法创建app.

Python3.7使用Django1.11.7创建Django项目报以下错误时:

在使用Pycharm创建Django项目报以下错误时:

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

解决办法:

可以发现最后一行提示说是语法错误，说是生成器表达式有问题，那具体的报错行内容是 '%s=%s' % (k, v) for k, v in params.items(), 将最后一行的 ' ，‘去除即可

ps：如果是pycharm中修改的话，由于这个文件是源码，还要注意提示框中选择 I want to edit this file anyway 。