python: encode and decode

import binascii

    geovin=b"geovindu"
    adu=base64.b64encode(geovin) #加密码
    print(adu)
    edu=base64.b64decode(adu) #解密
    print(edu)

    s=["医疗",400,1]
    column=('InsuranceName','InsuranceCost','IMonth')
    tbname="InsuranceMoney"
    vls = str(s).replace("[", "").replace("]", "")
    cls = str(column).replace("'", "").replace("'", "")
    sqlstring = f"insert into {tbname} {cls} values ({vls})"
    print(sqlstring)