pyexiv2-developers team mailing list archive

[Olivier Tilloy <olivier@xxxxxxxxxx>]

Hi Stani,

On 2010-03-25, Stani <spe.stani.be@xxxxxxxxx> wrote:
> I had a quick look and it looks really good!

Thanks! Let's see if it proves as good as it looks :)

> Reading the documentation, I have the following questions:
> - Are raw_value extracted lazily or all they all extracted with metadata.read()?

What ImageMetadata.read() does is basically to call the underlying 
readMetadata() method of the Exiv2::Image class, so from pyexiv2's point 
of view, the raw values are lazily extracted upon request.

> - Does metadata.copy also copy previews?

No. It optionally copies EXIF, IPTC and XMP metadata, but not the previews.

> - Does tag.value give unicode strings of tag.raw_value if eg some
> chinese is stored in the tag?

No conversion is performed for EXIF and IPTC tags (it should ideally be 
done, there are some FIXMEs in the code).
For XMP, a conversion is attempted. I haven't tested anything with 
Chinese characters, though. I'd be curious to see how it behaves.
For IPTC tags, see also the related 
https://bugs.launchpad.net/pyexiv2/+bug/461847.

> We are finishing the Phatch 0.2.* releases (our last stage is Windows
> and Mac installers) and for Phatch 0.3 we will use this.  We got
> requests for XMP support, so it will be nice to integrate that.

Yeah, I can't wait to see pyexiv2 0.2 used in a real world application 
to stress it a bit!

> Olivier, I don't know if you looked to the Phatch image inspector but
> it is a GUI frontend to pyexiv2 ;-) It allows you to edit metadata in
> a grid for images individually or collectively (by row).

I remember looking at it when it was in its early stages of prototyping. 
I wanted to write such an application at some point, but you've been 
faster :)

> Congratulations with the new release!

Thanks, keep up the good work on Phatch!
I was writing to Robin earlier today, and mentioning that I'll be happy 
to help in porting Phatch to pyexiv2 0.2, just let me know when and how 
I can help!

Cheers,

Olivier