Update app.py

app.py

@@ -129,8 +129,8 @@ def predict_sdg(text):
 
 # Define input and warning
 if gr.Textbox(lines=7, label="Paste or type text here") != '':
-    single_text = gr.Textbox(lines=7, label="Paste or type text here") != ''
-else:
+    single_text = gr.Textbox(lines=7, label="Paste or type text here")
+elif r.Textbox(lines=7, label="Paste or type text here") == '':
     single_text = gr.Warning('This model need some text to return a prediction')
 
 # Create Gradio interface for single text