Update app.py

app.py

@@ -8,18 +8,20 @@ global_df = None
 def process_csv(file):
     global global_df
     if file is None:
-        return "No file uploaded"
+        return None
     
     # Read the CSV file into a DataFrame and store it in the global variable
     global_df = pd.read_csv(StringIO(file.decode("utf-8")))
+    return None  # Return None as we don't want to show any output
 
 # Create the Gradio interface
 iface = gr.Interface(
     fn=process_csv, 
     inputs=gr.File(type="binary", label="Upload CSV File"),
+    outputs=gr.components.Label(),  # Use Label as a placeholder output
     title="CSV File Upload",
     description="Upload a CSV file to load it into a pandas DataFrame."
 )
 
 if __name__ == "__main__":
-    iface.launch()
+    iface.launch()