JSON Isn’t the Best Format for Config Files in Python — It Never Was

📰 Medium · Programming

Learn why JSON isn't ideal for config files in Python and discover better alternatives, including one now in the standard library

intermediate Published 12 Apr 2026

Action Steps

Explore the limitations of JSON for config files in Python
Consider alternative config file formats such as YAML or TOML
Use the configparser module from the Python standard library to manage config files
Test and validate config file parsing using the configparser module
Compare the benefits of different config file formats for your specific use case

Who Needs to Know This

Developers and DevOps teams can benefit from understanding the limitations of JSON for config files and exploring alternative formats to improve their workflows

Key Insight

💡 JSON has limitations for config files in Python, and alternative formats like YAML or TOML, along with the configparser module, offer more flexibility and readability