Update app.py

app.py

@@ -35,10 +35,11 @@ def sentiment_model():
 
 if option == 'Extractive question answering':
     st.markdown("<h2 style='text-align: center; color:red;'>Extract answer from text</h2>", unsafe_allow_html=True)
-    with open(sample.txt, "r") as text_file:
-        sample_text = text_file.read()
-    source = st.radio("How would you like to start? Choose an option below", ["I want to input some text", "I want to upload a file"])
+        source = st.radio("How would you like to start? Choose an option below", ["I want to input some text", "I want to upload a file"])
     if source == "I want to input some text":
+        sample_text = ""
+        with open(sample.txt, "r") as text_file:
+            sample_text = text_file.read()
         context = st.text_area('Use the example below or input your own text in English (10,000 characters max)', value=sample_text, max_chars=10000, height=330)
         question = st.text_input(label='Enter your question')
         button = st.button('Get answer')