Update app.py

app.py

@@ -23,7 +23,7 @@ def main():
         Land_use = st.selectbox("Land use",options = unique_LANDUSE_TYPE)
         User = st.selectbox("User",options = unique_USER)
         Month = st.selectbox("Month",options = unique_Month)
-        pipe_diam = st.number_input("pipe diameter:",min_value=0.5, max_value=10.0, value=None, step=0.5)
+        pipe_diam = st.number_input("pipe diameter:",min_value=0.5, max_value=10.0, value=float, step=0.5)
         st.form_submit_button("start predict ")
         if clicked:
             result=model.predict(pd.DataFrame({"LANDUSE_TYPE": [Land_use],