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

    错误信息:

    Traceback (most recent call last):
      File "manage.py", line 22, in <module>
        execute_from_command_line(sys.argv)
      File "E:pythonlearning_logll_envlibsite-packagesdjangocoremanagement\__init__.py", line 363, in execute_from_command_line
        utility.execute()
      File "E:pythonlearning_logll_envlibsite-packagesdjangocoremanagement\__init__.py", line 337, in execute
        django.setup()
      File "E:pythonlearning_logll_envlibsite-packagesdjango\__init__.py", line 27, in setup
        apps.populate(settings.INSTALLED_APPS)
      File "E:pythonlearning_logll_envlibsite-packagesdjangoapps
    egistry.py", line 85, in populate
        app_config = AppConfig.create(entry)
      File "E:pythonlearning_logll_envlibsite-packagesdjangoappsconfig.py", line 94, in create
        module = import_module(entry)
      File "E:pythonlearning_logll_envlibimportlib\__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 "E:pythonlearning_logll_envlibsite-packagesdjangocontribadmin\__init__.py", line 4, in <module>
        from django.contrib.admin.filters import (
      File "E:pythonlearning_logll_envlibsite-packagesdjangocontribadminfilters.py", line 10, in <module>
        from django.contrib.admin.options import IncorrectLookupParameters
      File "E:pythonlearning_logll_envlibsite-packagesdjangocontribadminoptions.py", line 12, in <module>
        from django.contrib.admin import helpers, widgets
      File "E:pythonlearning_logll_envlibsite-packagesdjangocontribadminwidgets.py", line 151
        '%s=%s' % (k, v) for k, v in params.items(),
        ^
    SyntaxError: Generator expression must be parenthesized
    
    (ll_env) E:pythonlearning_log>python manage.py migrate
    Traceback (most recent call last):
      File "manage.py", line 22, in <module>
        execute_from_command_line(sys.argv)
      File "E:pythonlearning_logll_envlibsite-packagesdjangocoremanagement\__init__.py", line 363, in execute_from_command_line
        utility.execute()
      File "E:pythonlearning_logll_envlibsite-packagesdjangocoremanagement\__init__.py", line 337, in execute
        django.setup()
      File "E:pythonlearning_logll_envlibsite-packagesdjango\__init__.py", line 27, in setup
        apps.populate(settings.INSTALLED_APPS)
      File "E:pythonlearning_logll_envlibsite-packagesdjangoapps
    egistry.py", line 85, in populate
        app_config = AppConfig.create(entry)
      File "E:pythonlearning_logll_envlibsite-packagesdjangoappsconfig.py", line 94, in create
        module = import_module(entry)
      File "E:pythonlearning_logll_envlibimportlib\__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 "E:pythonlearning_logll_envlibsite-packagesdjangocontribadmin\__init__.py", line 4, in <module>
        from django.contrib.admin.filters import (
      File "E:pythonlearning_logll_envlibsite-packagesdjangocontribadminfilters.py", line 10, in <module>
        from django.contrib.admin.options import IncorrectLookupParameters
      File "E:pythonlearning_logll_envlibsite-packagesdjangocontribadminoptions.py", line 12, in <module>
        from django.contrib.admin import helpers, widgets
      File "E:pythonlearning_logll_envlibsite-packagesdjangocontribadminwidgets.py", line 151
        '%s=%s' % (k, v) for k, v in params.items(),
        ^
    SyntaxError: Generator expression must be parenthesized

    问题原因:

    由于django 1.11版本和python3.7版本不兼容, 2.0版本以后的Django修复了这个问题

    解决方法:

    方法1.找到对应路径下的widgets.py,将逗号删除即可

    方法2.升级Django版本

    pip install -U Django

    参考链接:

    https://www.cnblogs.com/yanlin-10/p/9714793.html

    https://stackoverflow.com/questions/48822571/syntaxerror-generator-expression-must-be-parenthezised-python-manage-py-migra

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  • 原文地址:https://www.cnblogs.com/runningRookie/p/11108771.html
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