Pre-annotations of TextArea

[michaelachmann]

I ran into trouble when adding pre annotations using the SDK for textareas. Here's my initial bug report: HumanSignal/label-studio#3941

I think there might still be a bug in the SDK causing the uploaded tasks pre-annotations to contain the following

"value": {
  "textarea": [
    "... transcription ..."
  ]
},

instead of

"value": {
  "text": [
    "... transcription ..."
  ]
},

[makseq]

Could you please share your SDK code where you create pre-annotations?

[michaelachmann]

Sure, it's basically these two steps:

1. Create a new project and Interface:

interface = """
<View>
  <Audio name="audio" value="$audio" zoom="true" hotkey="ctrl+enter" />
  <Header value="Provide Transcription" />
  <TextArea name="transcript" toName="audio"
            rows="5" editable="true" maxSubmissions="1" />
</View>
"""

project_name = "Audio Project" 
ls = Client(url=labelstudio_url, api_key=labelstudio_key)
project = ls.start_project(
    title=project_name,
    label_config=interface,
)

2. Upload Tasks with pre-annotations

project.import_tasks(
        df_tasks.to_dict('records'),
        preannotated_from_fields=['transcript'])

[makseq]

it won't work this way, because preannotatored from fields work for choices only.
Check this video https://labelstud.io/guide/predictions.html#Prepare-pre-annotations-for-Label-Studio
and prepare your annotation json following this video tutorial.

Also check this example:
https://github.com/heartexlabs/label-studio-sdk/blob/master/examples/import_preannotations/import_preannotations.py#L29