I have a dataframe called df. It includes a zip column (ie., includes zip codes) and I want to use the pyzipcodes library to create a new column called state, and map the zip codes to states. The following code works in mapping zip codes to the state column, HOWEVER, it gives me a long list of string which includes zip code, city, state, etc. I only want state to show up. Please tell me how to correct this issue. Thank you df['zip code'] = df['zip code'].astype('object') df['state'] = df['zip code'].map(zcdb)