app.py

import streamlit as st
from transformers import pipeline
from transformers import AutoTokenizer, AutoModelForSequenceClassification
from huggingface_hub.inference_api import InferenceApi
import os

models = ["junming-qiu/BertToxicClassifier", "cardiffnlp/twitter-xlm-roberta-base-sentiment", "nlptown/bert-base-multilingual-uncased-sentiment", "Tatyana/rubert-base-cased-sentiment-new"]



st.title('Sentiment Analysis Demo')
with st.form("form"):
    selection = st.selectbox('Select Transformer:', models)
    text = st.text_input('Enter text: ', "I hate people who walk")
    submitted = st.form_submit_button('Submit')

    if submitted:
        model_name = models[models.index(selection)]

        if model_name == "junming-qiu/BertToxicClassifier":
            API_TOKEN=os.environ['API-KEY']

            inference = InferenceApi(repo_id=model_name, token=API_TOKEN)
            predictions = inference(inputs=text)[0]
            predictions = sorted(predictions, key=lambda x: x['score'], reverse=True)

            hide_table_row_index = """
            <style>
            thead tr th:first-child {display:none}
            tbody th {display:none}
            </style>
            """

            st.markdown(hide_table_row_index, unsafe_allow_html=True)

            output = [
                        {"tweet": text,
                        "label": predictions[0]['label'],
                        "score" : predictions[0]['score'],
                        "label 2": predictions[1]['label'],
                        "score 2" : predictions[1]['score']},
                    ]       
            st.table(output)
        else:

            model = AutoModelForSequenceClassification.from_pretrained(model_name)
            tokenizer = AutoTokenizer.from_pretrained(model_name)
            classifier = pipeline("text-classification", model=model, tokenizer=tokenizer)
            result = classifier(text)
            st.write("Label:", result[0]["label"])
            st.write('Score: ', result[0]['score'])