df_1 = pd.read_excel(r"C:\Users\Nilotpal.Choudhury\Udemy Assignment-1\warehouse_city.xlsx") # note the use of r prior to path reference
df_1 = pd.read_excel(r"C:\Users\Nilotpal.Choudhury\Udemy Assignment-1\warehouse_city.xlsx") # note the use of r prior to path reference