Update app.py

app.py

@@ -4,11 +4,12 @@ from transformers import pipeline
 pipe = pipeline('sentiment-analysis')
 
 st.title("Sentiment Analysis")
-st.markdown(":green[$\sqrt{x^2+y^2}=1$] is a Pythagorean identity. :pencil:")
 st.write("""##### This demo identifies the emotional tone behind a body of text. :sunglasses:""")
 text = st.text_area('Enter some text in the box below!')
 
 result = st.button("or click here")
 if text or result:
     out = pipe(text)
-    st.table(out)
+    st.table(out)
+else
+    st.error('You did not enter a text, icon="🚨")