Introduction to zzlog

Logging is a critical aspect of application development and management. Effective logging helps developers debug applications, monitor their performance, and keep track of application behavior. zzlog is a versatile logging library that makes this process easier by providing a wide range of logging functions.

Getting Started with zzlog

To get started with zzlog, you need to install the library via your preferred package manager. Below is an example of how to install zzlog:

  pip install zzlog

Configuration

You need to configure zzlog before using it. Here’s an example of a simple configuration:

  
    import zzlog

    zzlog.configure({
        'level': 'INFO',
        'handlers': [
            {'type': 'console'},
            {'type': 'file', 'filename': 'app.log'}
        ]
    })
  

Basic Logging Usage

Once configured, you can use the following code snippets to log messages at various levels:

  
    zzlog.debug('This is a debug message')
    zzlog.info('This is an info message')
    zzlog.warning('This is a warning message')
    zzlog.error('This is an error message')
    zzlog.critical('This is a critical message')
  

Logging Exceptions

zzlog makes it easy to log exceptions:

  
    try:
        1 / 0
    except ZeroDivisionError as e:
        zzlog.exception('An exception occurred', exc_info=e)
  

Advanced Logging Features

zzlog also supports advanced logging features such as structured logs, custom log levels, and filtering:

  
    zzlog.configure({
        'level': 'DEBUG',
        'handlers': [
            {'type': 'console'},
            {'type': 'file', 'filename': 'app.log'},
            {'type': 'json', 'filename': 'app.json'}
        ]
    })

    custom_log_level = zzlog.addLevel('CUSTOM', 25)
    zzlog.log(custom_log_level, 'This is a custom log message')
  

Real-world Application Example

Here is a complete example application that demonstrates the zzlog APIs discussed above:

  
    import zzlog

    # Configure zzlog
    zzlog.configure({
        'level': 'INFO',
        'handlers': [
            {'type': 'console'},
            {'type': 'file', 'filename': 'app.log'}
        ]
    })

    # Example logging
    def divide(a, b):
        try:
            result = a / b
            zzlog.info(f'Result of division: {result}')
            return result
        except ZeroDivisionError as e:
            zzlog.exception('An exception occurred during division', exc_info=e)

    if __name__ == '__main__':
        zzlog.info('Application started')
        divide(10, 0)
        zzlog.info('Application finished')
  

By using zzlog, developers can significantly improve their logging practices and enhance application maintainability.

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