How to use python code in node red pythonshell node

node-red is a powerful visual programming tool that allows you to wire together devices, apis, and online services. using python code in node-red can be done through the `python-shell` node, which allows you to run python scripts and retrieve their output.

### prerequisites



2. **python installed**: make sure you have python installed on your system. you can verify this by running:



3. **python-shell package**: you'll need the `python-shell` package. you can install it in your node-red directory:



### setting up node-red to use python

1. **start node-red**: launch node-red by running:



2. **create a new flow**: click on the "+" button to create a new flow.

3. **add the `python-shell` node**:
- drag and drop the `exec` node from the palette on the left into the flow workspace.
- double-click on the node to configure it.

### example python code

### configure the node in node-red

1. **set up the `exec` node**:
- in the `exec` node configuration, set the command to `python3` (or `python`, depending on your setup) followed by the path to your python script. for example:

- in the "add payload" section, set the payload type to "json" and provide the input. for example:


2. **connect the nodes**:
- connect an `inject` node to the `exec` node.
- connect the `exec` node to a `debug` node to see the output.

### example flow

here’s how the flow might look:

1. **inject node**: to trigger the flow.
2. **exec node**: runs the python script.
3. **debug node**: displays the output in the debug window.

### complete flow json

you can import the following json directly into node-red:

### r ...

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