Process base64 file io

def base64_process(**kwargs):
    """
    Process base64 file io
    """

    str_fileToSave      = ""
    str_fileToRead      = ""
    str_action          = "encode"
    data                = None

    for k,v in kwargs.items():
        if k == 'action':           str_action          = v
        if k == 'payloadBytes':     data                = v
        if k == 'payloadFile':      str_fileToRead      = v
        if k == 'saveToFile':       str_fileToSave      = v
        # if k == 'sourcePath':       str_sourcePath      = v

    if str_action       == "encode":
        # Encode the contents of the file at targetPath as ASCII for transmission
        if len(str_fileToRead):
            with open(str_fileToRead, 'rb') as f:
                data            = f.read()
                f.close()
        data_b64            = base64.b64encode(data)
        with open(str_fileToSave, 'wb') as f:
            f.write(data_b64)
            f.close()
        return {
            'msg':              'Encode successful',
            'fileProcessed':    str_fileToSave,
            'status':           True
            # 'encodedBytes':     data_b64
        }

    if str_action       == "decode":
       # if len(data) % 4:
            # not a multiple of 4, add padding:
            # data += '=' * (4 - len(data) % 4)

        # adding 3 padding = will never succumb to the TypeError and will always produce the same result.
        # https://gist.github.com/perrygeo/ee7c65bb1541ff6ac770
        bytes_decoded     = base64.b64decode(data + "===")
        with open(str_fileToSave, 'wb') as f:
            f.write(bytes_decoded)
            f.close()
        return {
            'msg':              'Decode successful',
            'fileProcessed':    str_fileToSave,
            'status':           True
            # 'decodedBytes':     bytes_decoded
        }