Create app.py

app.py

@@ -0,0 +1,53 @@
+import streamlit as st
+from transformers import pipeline
+from gtts import gTTS
+import uuid
+import os
+
+# Language options and model map (simplified to just one pair)
+MODEL_MAP = {
+    ("en", "fr"): "Helsinki-NLP/opus-mt-en-fr",
+    ("fr", "en"): "Helsinki-NLP/opus-mt-fr-en"
+}
+
+TRANSLATORS = {}
+
+# UI
+st.title("🌍 Multilingual Translator with Text-to-Speech")
+
+src_lang_name = st.selectbox("Select source language", ["English", "French"], index=0)
+tgt_lang_name = st.selectbox("Select target language", ["English", "French"], index=1)
+
+src_lang = "en" if src_lang_name == "English" else "fr"
+tgt_lang = "en" if tgt_lang_name == "English" else "fr"
+
+text_input = st.text_area("Enter text to translate:")
+
+if st.button("Translate & Speak"):
+    if not text_input.strip():
+        st.warning("Please enter some text.")
+    elif src_lang == tgt_lang:
+        st.warning("Source and target languages must be different.")
+    else:
+        # Load model lazily
+        if (src_lang, tgt_lang) not in TRANSLATORS:
+            with st.spinner(f"Loading model: {MODEL_MAP[(src_lang, tgt_lang)]}"):
+                TRANSLATORS[(src_lang, tgt_lang)] = pipeline("translation", model=MODEL_MAP[(src_lang, tgt_lang)])
+
+        translator = TRANSLATORS[(src_lang, tgt_lang)]
+        with st.spinner("Translating..."):
+            translated_text = translator(text_input)[0]["translation_text"]
+            st.success("Translation complete!")
+
+        st.text_area("Translated Text:", translated_text)
+
+        try:
+            audio_filename = f"{uuid.uuid4().hex}.mp3"
+            tts = gTTS(text=translated_text, lang=tgt_lang)
+            tts.save(audio_filename)
+            audio_file = open(audio_filename, "rb")
+            st.audio(audio_file.read(), format="audio/mp3")
+            audio_file.close()
+            os.remove(audio_filename)
+        except Exception as e:
+            st.warning(f"Translation OK, but TTS failed: {e}")