app.py

import gradio as gr
from transformers import pipeline

model_checkpoint = "Helsinki-NLP/opus-mt-fr-de"
translator = pipeline("translation", model=model_checkpoint)

my_input = gr.Textbox(label="Input")
my_output = gr.Textbox(label="Translation")

def iwwersetz(source_text):
    translation = translator(source_text)
    return translation

demo=gr.Interface(
   fn=iwwersetz,
   inputs=my_input,
   outputs=my_output
)
demo.launch()