Update app.py

app.py

@@ -1,41 +1,40 @@
 import streamlit as st
 from transformers import MarianMTModel, MarianTokenizer
+import torch
 
-# Define a function to load the model and tokenizer based on selected languages
+@st.cache_resource
 def load_model_and_tokenizer(src_lang, tgt_lang):
     model_name = f'Helsinki-NLP/opus-mt-{src_lang}-{tgt_lang}'
     model = MarianMTModel.from_pretrained(model_name)
     tokenizer = MarianTokenizer.from_pretrained(model_name)
     return model, tokenizer
 
-# Define a function for translation
 def translate_text(text, model, tokenizer):
-    inputs = tokenizer(text, return_tensors="pt", padding=True, truncation=True)
+    device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
+    model = model.to(device)
+    inputs = tokenizer(text, return_tensors="pt", padding=True, truncation=True).to(device)
     translated = model.generate(**inputs)
     return tokenizer.decode(translated[0], skip_special_tokens=True)
 
-# Streamlit UI
 st.set_page_config(page_title="Language Translator", layout="wide")
 st.title("🌍 Language Translator")
 st.markdown("Translate text quickly and easily between multiple languages using open-source models.")
 
-# Language options (You can extend this list as needed)
 language_codes = {
-    "English": "en", "Spanish": "es", "French": "fr", "German": "de", "Chinese": "zh", "Japanese": "ja", "Hindi": "hi", "Arabic": "ar", "Russian": "ru", "Portuguese": "pt",
+    "English": "en", "Spanish": "es", "French": "fr", "German": "de",
+    "Chinese": "zh", "Japanese": "ja", "Hindi": "hi", "Arabic": "ar",
+    "Russian": "ru", "Portuguese": "pt",
 }
 
-# User inputs for source and target languages
 col1, col2 = st.columns(2)
 with col1:
     source_language = st.selectbox("Select source language:", options=language_codes.keys(), index=0)
 with col2:
     target_language = st.selectbox("Select target language:", options=language_codes.keys(), index=1)
 
-# Input text
 st.subheader("Input Text")
 input_text = st.text_area("Enter the text you want to translate:", height=150)
 
-# Translation logic
 if st.button("Translate"):
     if not input_text.strip():
         st.error("Please enter text to translate.")
@@ -53,6 +52,5 @@ if st.button("Translate"):
         except Exception as e:
             st.error(f"An error occurred: {e}")
 
-# Footer
 st.markdown("---")
 st.markdown("Developed using [Helsinki-NLP](https://huggingface.co/Helsinki-NLP) open-source models and Streamlit.")