python - 值错误 : Unable to configure handler 'file' : [Errno 2] No such file or directory:

Question

我是 Python 和 Django 的新手，目前正忙于通过 www.djangoproject.com 上的教程自学。我正在使用 PyCharm 并在 OS X El Capitan 上工作。我已经从github导入了一个项目，并为基于Python 3.5.1的项目解释器创建了一个虚拟环境。在虚拟机中我安装了 django。

然后我激活了虚拟机。

现在.. 我开始尝试在终端中执行简单的命令，例如 python manage.py startapp deonapp 和 python manage.py runserver 但每次我得到我在下面粘贴的错误..我错过了什么？我似乎找不到/log/目录？

Traceback (most recent call last):
  File "/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/logging/config.py", line 558, in configure
    handler = self.configure_handler(handlers[name])
  File "/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/logging/config.py", line 731, in configure_handler
    result = factory(**kwargs)
  File "/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/logging/__init__.py", line 1008, in __init__
    StreamHandler.__init__(self, self._open())
  File "/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/logging/__init__.py", line 1037, in _open
    return open(self.baseFilename, self.mode, encoding=self.encoding)
FileNotFoundError: [Errno 2] No such file or directory: '/Users/deon/Documents/PyCharmProjects/Developments/deonproject/log/debug.log'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/deon/Documents/PyCharmProjects/Developments/deonproject/venv/lib/python3.5/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
    utility.execute()
  File "/Users/deon/Documents/PyCharmProjects/Developments/deonproject/venv/lib/python3.5/site-packages/django/core/management/__init__.py", line 341, in execute
    django.setup()
  File "/Users/deon/Documents/PyCharmProjects/Developments/deonproject/venv/lib/python3.5/site-packages/django/__init__.py", line 22, in setup
    configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
  File "/Users/deon/Documents/PyCharmProjects/Developments/deonproject/venv/lib/python3.5/site-packages/django/utils/log.py", line 75, in configure_logging
    logging_config_func(logging_settings)
  File "/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/logging/config.py", line 795, in dictConfig
    dictConfigClass(config).configure()
  File "/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/logging/config.py", line 566, in configure
    '%r: %s' % (name, e))
ValueError: Unable to configure handler 'file': [Errno 2] No such file or directory: '/Users/deon/Documents/PyCharmProjects/Developments/deonproject/log/debug.log'

Answer 1

由于某种原因，您没有日志文件的路径 (/Users/deon/Documents/PyCharmProjects/Developments/deonproject/log)。确保所有目录都存在(如果不存在，则创建它们)并创建一个空的 debug.log 日志文件(以防万一)。

发生的情况是您的代码发生了一些问题。处理程序捕获此错误并将其保存到您的日志文件中，以便您可以对其进行分析。但是，它试图打开的日志文件路径不存在。因此，异常发生在处理另一个异常的过程中。