Add black with pre-commit; format Python code

[jbampton]

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[gemini-code-assist]

Summary of Changes

Hello @jbampton, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request aims to standardize the Python codebase's style by adopting the black formatter. It sets up black as a pre-commit hook to automate formatting and applies these style changes to the existing fetch.py and render.py scripts, improving readability and maintainability.

Highlights

• Code Formatting: Introduced the black code formatter to enforce a consistent style across Python files.
• Pre-commit Hook Integration: Integrated black into the .pre-commit-config.yaml to automatically format Python code before commits, ensuring style consistency.
• Python Code Reformatting: Applied black to existing Python files (fetch.py and render.py), resulting in changes to string literal quotes, line wrapping, and spacing.

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[gemini-code-assist]

Code Review

This pull request introduces black for consistent Python code formatting and applies it across the codebase. The changes in the Python files are purely stylistic and look good. However, there is a critical issue in the .pre-commit-config.yaml file where an invalid version for the black hook is specified, which will cause pre-commit to fail. I've left a comment with a suggestion to fix it.