Node-red Python exec

Hi, in order to make code more readable and importable it is important to surround your code with three backticks
```
like this
```

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See this post for more details - How to share code or flow json

Also add debug nodes to all outputs of the exec node, set them to show Complete Message and give them names so you can identify them in the debug pane. Probably there will be a useful error message in one of those.