Update app.py

app.py

@@ -44,7 +44,7 @@ st.subheader("You can tag your input CSV file of theses and dissertations with L
 tab1, tab2, tab3 = st.tabs(["📈 Load Data", "📃 Tagged ETDs", "📓 Download Data"])
 with tab1:
 #===load data===
-if uploaded_file is not None:
+    if uploaded_file is not None:
 df = pd.read_csv(uploaded_file, encoding='latin-1')
 st.dataframe(df)
        
@@ -65,7 +65,7 @@ return prediction
 with tab3:
 #===download result===
 # Create a download button
-if st.sidebar.button("Download"):
+    if st.sidebar.button("Download"):
 csv = df.to_csv(index=False)
 b64 = base64.b64encode(csv.encode()).decode()
 href = f'<a href="data:file/csv;base64,{b64}" download="results.csv">Download csv file</a>'