What is Ranno?

Ranno is a lightweight Python library that translates plain English instructions into Python code and executes it directly inside your local scope.

• AI Code Gen – Generates runnable Python code from natural language prompts using gn() (silent code generation) or ex() (direct execution).
• File Intelligence – Auto-detects column names, types, and schemas of local CSV, Excel, or JSON files to provide accurate context for code generation.
• Local Data Privacy – Processes files entirely on your local machine. Only a preview of column headers and the first 5 rows are read locally—your datasets are never uploaded to external servers.
• Shadow Copy Integrity – Protects your data by creating temporary backups (copy.<filename>) during execution, automatically rolling back and restoring the original file if a script fails.
• Caller Scope Propagation – Executes scripts directly in the caller's namespace (sys._getframe(1).f_globals), allowing generated code to read and modify active workspace variables inline.
• Gemini Native Integration – Powered natively by Google Gemini models (defaulting to gemini-3.1-flash-lite). Credentials and model configurations can be configured per request using cf().
• Ultra Minimalist API – Features only 4 simple and robust functions (gn, ex, sv, cf) to eliminate boilerplate code.