Add keywords to image metadata

Hi!

I want to implement feature that add keywords to image metadata, by icloud album title. For example, I have 10 photos in album named “Test album”, and I want to images have keyword “Test album”, for quick search in Shotwell.

The difficulty in implementing data writing to a file…

I tried via piexif:

  exif_dict = piexif.load(path)
  exif_dict.get("0th")[40094] = tags // tags is string 'tag1,tag2'
  exif_bytes = piexif.dump(exif_dict)
  piexif.insert(exif_bytes, path)       

and got error

    zeroth_set = _dict_to_bytes(zeroth_ifd, "0th", 0)
  File "/usr/local/lib/python2.7/dist-packages/piexif/_dump.py", line 337, in _dict_to_bytes
    offset)
  File "/usr/local/lib/python2.7/dist-packages/piexif/_dump.py", line 193, in _value_to_bytes
    value_str = (_pack_byte(*raw_value) +
  File "/usr/local/lib/python2.7/dist-packages/piexif/_dump.py", line 162, in _pack_byte
    return struct.pack("B" * len(args), *args)
struct.error: cannot convert argument to integer

via iptcinfo:

        iptc.keywords = []
        tags = [x.strip() for x in tags.split(',')];
        iptc.keywords.extend(tags)
        iptc.save()

no errors, and no results - tags wasn’t written to file…

Help, please…

[RhetTbull]

yes, manually tagging the photos with album name would work

[adamshand]

@RhetTbull that’s amazing! Photos are almost done downloading (will finish overnight) and I was just starting to experiment with tagging my albums by hand. Which was looking pretty tediously slow … so thanks heaps! 😃