dfカラムから辞書をつくる

{k : "" for k in df_customer.columns.tolist()}

{'customer_id': '',
 'customer_name': '',
 'gender_cd': '',
 'gender': '',
 'birth_day': '',
 'age': '',
 'postal_cd': '',
 'address': '',
 'application_store_cd': '',
 'application_date': '',
 'status_cd': ''}