N8N Code Python

What it does

This n8n node executes Python code directly within your workflow, allowing you to run custom logic without external servers. It supports both synchronous and asynchronous execution modes for handling data transformations efficiently.

When to use it

• Perform complex data manipulations that standard n8n nodes cannot handle.
• Integrate with local libraries or specific algorithms not available in the n8n core.
• Process large datasets in memory before passing them to downstream nodes.
• Run quick validation scripts or custom formatting logic inline.

Key capabilities

• Execute arbitrary Python code snippets directly in the workflow.
• Support for both synchronous and asynchronous execution modes.
• Access to full Python standard library and installed packages.
• Input/Output handling via JSON-compatible data structures.
• Error handling within the node execution context.

Example prompts

• "Run a Python script to filter this list of users by active status."
• "Execute an async function to fetch external API data before saving."
• "Transform incoming JSON payloads using custom Pandas logic."

Tips & gotchas

Ensure your n8n environment has the necessary Python packages installed, as the node relies on them for execution. Be cautious with synchronous code in high-volume workflows, as it may block the workflow engine; prefer asynchronous functions when dealing with I/O operations.