app.py

import gradio as gr

title = "MarianMT"

description = "Gradio Demo for MarianMT. To use it, simply add your text, or click one of the examples to load them. Read more at the links below."

article = "<p style='text-align: center'><a href='https://arxiv.org/abs/1804.00344' target='_blank'>Marian: Fast Neural Machine Translation in C++</a></p>"

examples = [
    ['我叫沃尔夫冈，我住在柏林。',"opus-mt-zh-en"]
]

io1 = gr.Interface.load("huggingface/Helsinki-NLP/opus-mt-zh-en")

io2 = gr.Interface.load("huggingface/Helsinki-NLP/opus-mt-en-de")

def inference(text, model):
    if model == "opus-mt-zh-en":
        outtext = io1(text)
    else:
        outtext = io2(text)
    return outtext   
     

gr.Interface(
    inference, 
    [gr.inputs.Textbox(label="Input"),gr.inputs.Dropdown(choices=["opus-mt-zh-en","opus-mt-en-de"], type="value", default="opus-mt-zh-en", label="model")
], 
    gr.outputs.Textbox(label="Output"),
    examples=examples,
    article=article,
    title=title,
    description=description).launch(enable_queue=True, cache_examples=True)