Pickling issue.

[Bob Gailer]

On Mon, Dec 21, 2020, 3:03 PM Vincent Vande Vyvre <
vincent.vande.vyvre at telenet.be> wrote:

> Hi,
>
> I've an object that I want to serialise with pickle.
> When I reload the object the attributes of this object are correctly
> fixed except one of these.
>
> This attribute (value) define a simple string.
>
> Example:
> ---------------------------------------------
> tag =  XmpTag('Xmp.dc.form'image/jpeg')


I am not familiar with XmpTag. Where might I get the containing module?

tag.key
> 'Xmp.dc.format'
> tag.type
> 'MIMEType'
> tag.value
> 'image/jpeg'
>
> s = pickle.dumps(tag)
> t = pickle.loads(s)
> t.key
> 'Xmp.dc.format'     # Correct
> t.type
> 'MIMEType'          # Correct
> t.value
> ('image', 'jpeg')   # Not correct
> ---------------------------------------------
>
> Tested with Python-3.8
>
> An idea ?
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>