Update app.py

app.py

@@ -34,7 +34,7 @@ if choice == "Upload":
     file = st.file_uploader("Upload Your Dataset")
     if file:
         df = pd.read_csv(file, index_col=None)
-        df.drop("Unnamed: 0", axis=1, inplace=True)
+        df.drop("Unnamed: 0", axis=1, inplace=True) if "Unnamed: 0" in df.columns else None
         df.to_csv('dataset.csv', index=None)
         st.dataframe(df)
         st.session_state['df'] = df