Python Programming Blueprints

Loading parsers dynamically

This application is intended to be flexible and allow developers to create different parsers for different weather websites. We are going to create a parser loader that will dynamically discover files inside of the parsers directory, load them, and make them available to be used by the application without requiring changes to any other parts of the code. Here are the rules that our loader will require when implementing new parsers:

• Create a file with a class implementing the methods for fetching the current weather forecast as well as five-day, ten-day, and weekend weather forecasts
• The file name has to end with parser, for example, weather_com_parser.py
• The file name can't start with double underscores

With ...