Update app.py

app.py

@@ -300,10 +300,13 @@ st.subheader("Step 2: Generate Summaries")
 st.write("Select Summary Language:")
 summary_language_options = ["English", "Spanish", "French", "German", "Chinese"]
 cols = st.columns(len(summary_language_options))
-summary_language = None
-for i, col in enumerate(cols):
-    if col.radio("", [summary_language_options[i]], key=f"summary_{i}"):
-        summary_language = summary_language_options[i]
+# Default selected option
+summary_language = st.radio(
+    "", 
+    summary_language_options, 
+    horizontal=True, 
+    key="summary_language"
+)
 
 if st.session_state.rag_system.document_summary:
     st.text_area("Document Summary", st.session_state.rag_system.document_summary, height=200)
@@ -319,11 +322,12 @@ if st.button("Generate Summary"):
 st.subheader("Step 3: Ask Questions")
 st.write("Select Q&A Language:")
 qa_language_options = ["English", "Spanish", "French", "German", "Chinese"]
-cols = st.columns(len(qa_language_options))
-qa_language = None
-for i, col in enumerate(cols):
-    if col.radio("", [qa_language_options[i]], key=f"qa_{i}"):
-        qa_language = qa_language_options[i]
+qa_language = st.radio(
+    "", 
+    qa_language_options, 
+    horizontal=True, 
+    key="qa_language"
+)
 
 if st.session_state.rag_system.qa_chain:
     history = []
@@ -341,11 +345,12 @@ else:
 st.subheader("Step 4: Generate Podcast")
 st.write("Select Podcast Language:")
 podcast_language_options = ["English", "Spanish", "French", "German", "Chinese"]
-cols = st.columns(len(podcast_language_options))
-podcast_language = None
-for i, col in enumerate(cols):
-    if col.radio("", [podcast_language_options[i]], key=f"podcast_{i}"):
-        podcast_language = podcast_language_options[i]
+podcast_language = st.radio(
+    "", 
+    podcast_language_options, 
+    horizontal=True, 
+    key="podcast_language"
+)
 
 if st.session_state.rag_system.document_summary:
     if st.button("Generate Podcast"):