Django logging error: Log file not created

Question

While running Django project, I am getting the following error:

Unhandled exception in thread started by <function wrapper at 0x7fe72b054b50> 

Traceback (most recent call last):   
File "/usr/local/lib/python2.7/dist-packages/django/utils/autoreload.py", line 229, in wrapper
        fn(*args, **kwargs)   
File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 107, in inner_run
        autoreload.raise_last_exception()   
File "/usr/local/lib/python2.7/dist-packages/django/utils/autoreload.py", line 252, in raise_last_exception
        six.reraise(*_exception)   
File "/usr/local/lib/python2.7/dist-packages/django/utils/autoreload.py", line 229, in wrapper
        fn(*args, **kwargs)   

File "/usr/local/lib/python2.7/dist-packages/django/__init__.py", line 17, in setup
        configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)   File "/usr/local/lib/python2.7/dist-packages/django/utils/log.py", line 86, in configure_logging
        logging_config_func(logging_settings)   
File "/usr/lib/python2.7/logging/config.py", line 794, in dictConfig
        dictConfigClass(config).configure()   
File "/usr/lib/python2.7/logging/config.py", line 576, in configure
        '%r: %s' % (name, e)) 
    
ValueError: Unable to configure handler 'ap_migration_log': [Errno 2] No such file or directory: '/home/dg/Desktop/project_dir/django_project/
    module_a/management/commands/log/ap_migration_log'

One solution I found on stackoverflow is to create these files and then this error will not occur. But, why can't Django create log files on its own when required? Is there any config setting or command to make sure that logging file isn't created manually?

have you read docs.djangoproject.com/en/3.0/topics/logging . I think you can find your solution here — Maede
– Maede, Commented Jan 29, 2020 at 10:10

Zer0 · Accepted Answer · 2020-01-29 19:39:13Z

1

Make sure that if you're writing the logs to /my/log/dir/log.txt, that path exists along with the empty log.txt file. Also make sure that your directory has the right permissions to perform CRUD operations. Same goes to the file.

It's best practice to store log files in /var/log/ directory.

Have a look at https://docs.djangoproject.com/en/3.0/topics/logging/#configuring-logging for examples on how Django logging works.

answered Jan 29, 2020 at 19:39

Zer0

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1 Comment

Peter Kahn Apr 23 at 16:33

In addition, you could have setting.py create the missing director structure prior to enabling the logging system. There's a bit of danger with that. This means if you do that and the direct recreation fails, that's not gonna be logged normally. However, it's a relatively simple action, and if it fails, the application terminates.

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