Hands-On Software Engineering with Python

Configuration

Services frequently have to be configurable without making changes to the actual service code, so that the end users or managers of active services don't have to be developers themselves, in order to be able to effectively manage running service instances. There are several options that can be used to read configuration and setting values from files, each with its own strengths and weaknesses. In order to better compare and contrast them, let's examine the variations that provide the configuration for a service that does the following:

• Logs information, warning, error, and critical level messages:
  • Information and warning level messages to a console
  • Everything, including information and warning level messages, to a single, ...