n8n-code-pythonlisted

# Python Code Node (Beta) Expert guidance for writing Python code in n8n Code nodes. --- ## ⚠️ Important: JavaScript First **Recommendation**: Use **JavaScript for 95% of use cases**. Only use Python when: - You need specific Python standard library functions - You're significantly more comfortable with Python syntax - You're doing data transformations better suited to Python **Why JavaScript is preferred:** - Full n8n helper functions ($helpers.httpRequest, etc.) - Luxon DateTime library for advanced date/time operations - No external library limitations - Better n8n documentation and community support --- ## Quick Start ```python # Basic template for Python Code nodes items = _input.all() # Process data processed = [] for item in items: processed.append({ "json": { **item["json"], "processed": True, "timestamp": datetime.now().isoformat() } }) return processed ``` ### Essential Rules 1. **Consider JavaScript first** - Use Python only when necessary 2. **Access data**: `_input.all()`, `_input.first()`, or `_input.item` 3. **CRITICAL**: Must return `[{"json": {...}}]` format 4. **CRITICAL**: Webhook data is under `_json["body"]` (not `_json` directly) 5. **CRITICAL LIMITATION**: **No external libraries** (no requests, pandas, numpy) 6. **Standard library only**: json, datetime, re, base64, hashlib, urllib.parse, math, random, statistics --- ## Mode Selection Guide Same as JavaScript - choose based on y