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HD Refactor ExecutePython and EvaluateExpression nodes #41

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9abd3bf
Refactor ExecutePython and EvaluateExpression nodes to enhance funct…
heavy-d Jun 10, 2025
4a4cb30
Rename example and add descriptions
heavy-d Jun 10, 2025
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2 changes: 1 addition & 1 deletion src/nodetool/dsl/nodetool/code.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
class EvaluateExpression(GraphNode):
"""
Evaluates a Python expression with safety restrictions.
python, expression, evaluate
python, expression, evaluate, code

Use cases:
- Calculate values dynamically
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363 changes: 363 additions & 0 deletions src/nodetool/examples/nodetool-base/EvaluateExpression.json
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Original file line number Diff line number Diff line change
@@ -0,0 +1,363 @@
{
"id": "",
"access": "private",
"created_at": "2025-06-10T16:23:25.084534",
"updated_at": "2025-06-10T16:42:45.948184",
"name": "EvaluateExpression",
"description": "Use the EvaluateExpression node when you need to perform a quick calculation or check a condition.",
"tags": null,
"thumbnail": "",
"thumbnail_url": null,
"graph": {
"edges": [
{
"id": "6be03d51-82d1-4faa-8896-46ec91e56f94",
"source": "723769f5-0a53-4c4e-8239-8289971dbb26",
"sourceHandle": "output",
"target": "7cc777ee-22cc-44c1-ae95-fe086406304a",
"targetHandle": "variables",
"ui_properties": {
"className": "dict"
}
},
{
"id": "3c818eff-625c-4a20-9254-7296abe450e4",
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"sourceHandle": "output",
"target": "727aecd6-c612-4d06-a93a-c089e9f06c63",
"targetHandle": "value",
"ui_properties": {
"className": "any"
}
}
],
"nodes": [
{
"id": "7cc777ee-22cc-44c1-ae95-fe086406304a",
"type": "nodetool.code.EvaluateExpression",
"data": {
"expression": "(celsius * 9/5) + 32"
},
"ui_properties": {
"selected": false,
"position": {
"x": 312,
"y": 78
},
"zIndex": 0,
"width": 200,
"selectable": true
},
"dynamic_properties": {}
},
{
"id": "9260d2cb-949d-4e37-ba3c-7d18c842f3a1",
"type": "nodetool.workflows.base_node.Comment",
"data": {
"comment": [
{
"type": "paragraph",
"children": [
{
"text": "Use the ",
"size": "+"
},
{
"text": "EvaluateExpression",
"bold": true,
"size": "+"
},
{
"text": " node when you need to perform a quick calculation or check a condition.",
"size": "+"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "",
"size": "+"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "Useful for simple, one-line operations like:",
"size": "+"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "Math: (celsius * 9/5) + 32",
"size": "+"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "Logic: order_total > 100",
"size": "+"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "Data checks: len(name) > 0",
"size": "+"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "",
"size": "+"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "This node is a simplified and safer alternative to the full ",
"size": "+"
},
{
"text": "ExecutePython",
"bold": true,
"size": "+"
},
{
"text": " node.",
"size": "+"
}
]
}
]
},
"ui_properties": {
"selected": false,
"position": {
"x": 6,
"y": -234
},
"zIndex": 0,
"width": 600,
"height": 192,
"selectable": true
},
"dynamic_properties": {}
},
{
"id": "723769f5-0a53-4c4e-8239-8289971dbb26",
"type": "nodetool.constant.Dict",
"data": {
"value": {
"celsius": 32
}
},
"ui_properties": {
"selected": false,
"position": {
"x": 72,
"y": 78
},
"zIndex": 0,
"width": 200,
"selectable": true
},
"dynamic_properties": {}
},
{
"id": "727aecd6-c612-4d06-a93a-c089e9f06c63",
"type": "nodetool.workflows.base_node.Preview",
"data": {
"name": "any_output"
},
"ui_properties": {
"selected": false,
"position": {
"x": 552,
"y": 78
},
"zIndex": 0,
"width": 160,
"height": 160,
"selectable": true
},
"dynamic_properties": {}
},
{
"id": "28c71751-fe05-4bc4-930c-5c7ac91fed30",
"type": "nodetool.workflows.base_node.Comment",
"data": {
"comment": [
{
"type": "paragraph",
"children": [
{
"text": "\"abs\": abs, # Absolute value"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"all\": all, # True if all elements are true"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"any\": any, # True if any element is true"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"bool\": bool, # Convert value to True or False"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"float\": float, # Convert to a decimal number"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"int\": int, # Convert to a whole number"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"len\": len, # Length of an object"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"max\": max, # Maximum of an iterable"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"min\": min, # Minimum of an iterable"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"round\": round, # Round a number"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"str\": str, # Convert to string"
}
]
},
{
"type": "paragraph",
"children": [
{
"text": "\"sum\": sum, # Sum an iterable"
}
]
}
]
},
"ui_properties": {
"selected": false,
"position": {
"x": -375,
"y": 78
},
"zIndex": 0,
"width": 290,
"height": 202,
"selectable": true
},
"dynamic_properties": {}
},
{
"id": "8277f689-b475-465d-8ecf-48c4d95c0509",
"type": "nodetool.workflows.base_node.Comment",
"data": {
"comment": [
{
"type": "paragraph",
"children": [
{
"text": "AVAILABLE OPERATORS",
"size": "+",
"bold": "b"
}
]
}
]
},
"ui_properties": {
"selected": false,
"position": {
"x": -375,
"y": 3
},
"zIndex": 0,
"width": 232,
"height": 50,
"selectable": true
},
"dynamic_properties": {}
}
]
},
"input_schema": {
"type": "object",
"properties": {},
"required": []
},
"output_schema": {
"type": "object",
"properties": {},
"required": []
},
"settings": {},
"package_name": null,
"path": null
}
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