Base64 sang png trăn

Tôi vẫn đang làm việc để chuyển mô-đun https. //www. odoo. com/ứng dụng/mô-đun/10. 0/product_default_image/ sang Odoo 11. 0

Khi cố gắng lưu một hình ảnh PNG với đoạn mã sau trong tệp rescompany. py

@api.model
    def _get_default_image[self]:
        with open[modules.get_module_resource['product_default_image', 
        'static/src/img', 
        'glob_prod_img.png'], 
        'rb'] as f:
            return base64.b64encode[f.read[]]

    product_image = fields.Binary[
        string='Global Product Image', 
        default=_get_default_image,
        help='Use as the global image for all product default images. '
             'Limited to 1024x1024.',
    ]


    @api.multi
    def write[self, vals]:
        """ Changes product images if target or product_image have changed """

        target = vals.get['product_image_target']

        if 'product_image' not in vals and not target:
            return super[ResCompany, self].write[vals]

        if 'product_image' in vals:
            vals['product_image'] = \
                tools.image_resize_image_big[
                    base64_source=vals['product_image'],
                ]

Tôi nhận được thông báo lỗi sau

Error:
Odoo Server Error

Traceback [most recent call last]:
  File "/usr/lib/python3.6/base64.py", line 510, in _input_type_check
    m = memoryview[s]
TypeError: memoryview: a bytes-like object is required, not 'str'

The above exception was the direct cause of the following exception:

Traceback [most recent call last]:
  File "/usr/lib/python3.6/encodings/base64_codec.py", line 19, in base64_decode
    return [base64.decodebytes[input], len[input]]
  File "/usr/lib/python3.6/base64.py", line 545, in decodebytes
    _input_type_check[s]
  File "/usr/lib/python3.6/base64.py", line 513, in _input_type_check
    raise TypeError[msg] from err
TypeError: expected bytes-like object, not str

The above exception was the direct cause of the following exception:

Traceback [most recent call last]:
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 653, in _handle_exception
    return super[JsonRequest, self]._handle_exception[exception]
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 312, in _handle_exception
    raise pycompat.reraise[type[exception], exception, sys.exc_info[][2]]
  File "/usr/lib/python3/dist-packages/odoo/tools/pycompat.py", line 87, in reraise
    raise value
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 695, in dispatch
    result = self._call_function[**self.params]
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 344, in _call_function
    return checked_call[self.db, *args, **kwargs]
  File "/usr/lib/python3/dist-packages/odoo/service/model.py", line 97, in wrapper
    return f[dbname, *args, **kwargs]
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 337, in checked_call
    result = self.endpoint[*a, **kw]
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 939, in __call__
    return self.method[*args, **kw]
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 517, in response_wrap
    response = f[*args, **kw]
  File "/usr/lib/python3/dist-packages/odoo/addons/web/controllers/main.py", line 934, in call_kw
    return self._call_kw[model, method, args, kwargs]
  File "/usr/lib/python3/dist-packages/odoo/addons/web/controllers/main.py", line 926, in _call_kw
    return call_kw[request.env[model], method, args, kwargs]
  File "/usr/lib/python3/dist-packages/odoo/api.py", line 687, in call_kw
    return call_kw_model[method, model, args, kwargs]
  File "/usr/lib/python3/dist-packages/odoo/api.py", line 672, in call_kw_model
    result = method[recs, *args, **kwargs]
  File "/usr/lib/python3/dist-packages/odoo/addons/account/models/res_config_settings.py", line 152, in create
    return super[ResConfigSettings, self].create[values]
  File "/usr/lib/python3/dist-packages/odoo/models.py", line 3402, in create
    self._fields[key].determine_inverse[record]
  File "/usr/lib/python3/dist-packages/odoo/fields.py", line 1082, in determine_inverse
    self.inverse[records]
  File "/usr/lib/python3/dist-packages/odoo/fields.py", line 599, in _inverse_related
    other[field.name] = record_value[record]
  File "/usr/lib/python3/dist-packages/odoo/models.py", line 4794, in __setitem__
    return self._fields[key].__set__[self, value]
  File "/usr/lib/python3/dist-packages/odoo/fields.py", line 987, in __set__
    record.write[{self.name: write_value}]
  File "/usr/lib/python3/dist-packages/odoo/addons/product_default_image/models/res_company.py", line 76, in write
    base64_source=vals['product_image'],
  File "/usr/lib/python3/dist-packages/odoo/tools/image.py", line 143, in image_resize_image_big
    return image_resize_image[base64_source, size, encoding, filetype, avoid_if_small]
  File "/usr/lib/python3/dist-packages/odoo/tools/image.py", line 56, in image_resize_image
    image_stream = io.BytesIO[codecs.decode[base64_source, encoding]]
TypeError: decoding with 'base64' codec failed [TypeError: expected bytes-like object, not str]

Làm cách nào để viết mã chính xác mã này cho Python3/Odoo 11?

Cảm ơn cho bất kỳ gợi ý

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