N8n Code Python

Write Python in n8n Code nodes (native Python, `language` pythonNative, n8n 2.x). Use when the user explicitly wants Python in a Code node, when migrating old Pyodide/"Python (Beta)" code that used _input/_json/_node/_now, or when a Python Code node fails with NameError, "Security violations detected", "Import of standard library module … is disallowed", "__build_class__ not found", "A 'json' property isn't a dictionary", or "Python runner unavailable". Covers the only two variables (_items/_item), dict-only access, imports blocked by default, the sandbox's denied builtins, accepted return sha

6,554 stars 1,077 forksSoftware Development

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add czlonkowski/n8n-skills --skill n8n-code-python

Manual install

git clone --depth 1 https://github.com/czlonkowski/n8n-skills.git /tmp/n8n-skills
mkdir -p ~/.claude/skills
cp -r /tmp/n8n-skills/skills/n8n-code-python ~/.claude/skills/n8n-code-python

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Python Code Node (native)

Since n8n 2.0 the Code node's Python runs as **native Python in a task runner** (`language:
"pythonNative"`). The old Pyodide "Python (Beta)" is gone, and with it every n8n helper it had:
`_input`, `_json`, `_node`, `_now`, `_today` and `_jmespath` all raise `NameError` now. Code copied
from old templates, forum posts or older docs usually breaks on this.

---

## JavaScript first — stronger than before

Native Python gives you two variables and plain Python, and **by default no imports**: no
`json`, `datetime` or `re`. Everything n8n-specific (`$('Node')`, `$jmespath`, Luxon,
`this.helpers.httpRequest`, static data) exists only in JavaScript. Use Python only when the user
explicitly asks for it. Even then, first check whether an expression, Edit Fields, or a native
node (Crypto, Date & Time, HTML, XML) does the job. See **n8n-code-javascript** and the transform
gatekeeper in **n8n-expression-syntax**.

---

## Quick start

```python
# Run Once for All Items (default mode)
return [
    {"json": {"name": it["json"]["name"], "revenue": it["json"]["revenue"]}}
    for it in _items
    if it["json"].get("active")
]
```

```python
# Run Once for Each Item
row = _item["json"]
return {"json": {**row, "name_upper": (row.get("name") or "").upper()}}
```

Node config: `{"language": "pythonNative", "mode": "runOnceForAllItems" | "runOnceForEachItem",
"pythonCode": "..."}` on `n8n-nodes-base.code` typeVersion 2.

---

## The only inputs: `_items` and `_item`

Read the full skill on GitHub

Details

Skill name: n8n-code-python
Repository: czlonkowski/n8n-skills
Path: skills/n8n-code-python/SKILL.md
License: MIT
Repo updated: 24 October 2026
Listed in: VoltAgent/awesome-agent-skills

FAQ

What does the N8n Code Python skill do?

How do I install the N8n Code Python skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add czlonkowski/n8n-skills --skill n8n-code-python. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is N8n Code Python popular?

It lives in czlonkowski/n8n-skills, which has 6,554 GitHub stars and 1,077 forks, and is included in 1 curated skill list.

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