Python logging: can dictConfig be read from a file?

Question

The examples of seen of using dictConfig to set up logging in Python show the dictionary be created in the Python script. I'd like to use a configuration file, but the documentation says fileConfig is older and less capable than dictConfig. Can a dictConfig be set up from a configuration file?

Thank you very much.

Answer 1

Since dictConfig just takes a dictionary, you can construct the dictionary in any way you like. One example for reading from a file is to have the configuration in JSON format. You can then just do something like

import json
import logging

with open('myconfig.json') as f:
    config_dict = json.load(f)
    logging.config.dictConfig(config_dict)

as long as the JSON file has the appropriate schema.

You can also use other file formats, such as YAML, though you would then need to install a 3rd-party library to parse the file.