gradio/demo/diff_texts.py

import gradio as gr
from difflib import Differ

def diff_texts(text1, text2):
    d = Differ()
    return [
        (token[2:], token[0] if token[0] != " " else None) for token in d.compare(text1, text2)
    ]

iface = gr.Interface(
    diff_texts,
    [
        gr.inputs.Textbox(
            lines=3, default="The quick brown fox jumped over the lazy dogs."),
        gr.inputs.Textbox(
            lines=3, default="The fast brown fox jumps over lazy dogs."),
    ],
    gr.outputs.HighlightedText(color_map={"+": "lightgreen", "-": "pink", }))
if __name__ == "__main__":
    iface.launch()