app.py

#!/usr/bin/env python

import gradio as gr
import pandas as pd

df = pd.DataFrame(
    data={
        "col": [
            """
Single newline:
Message continues here
""",
            """
Double newline:

Message continues here
""",
            "Single newline:\nMessage continues here",
            "Double newline:\n\nMessage continues here",
        ],
    }
)

with gr.Blocks() as demo:
    with gr.Row():
        with gr.Column():
            gr.Dataframe(value=df, datatype="markdown", line_breaks=False)
        with gr.Column():
            gr.Dataframe(value=df, datatype="markdown", line_breaks=True)

if __name__ == "__main__":
    demo.queue().launch()