Some Exif tags cannot be written while they are writable

[Wil Bergman]

L.S.

try to use Phatch as an alternative to exiftool (specially the "vangnet" function)

To change the following Exif tags, but that was not allowed.
Exiftools does allow them, so they are writable

Error 0:Kan niet actie Tag Schrijven toepassen op beeld 'Me.jpg' in map:
/home/wil/Pictures

Tag "Exif_Image_Software" is niet schrijfbaar.

Action:{'fields': {'Tag (Exif, Iptc)': u'Exif_Image_Software',
'Value': u'TEST',
'enabled': 'yes'},
'label': 'Write Tag'}

Traceback (most recent call last):
File "/usr/share/phatch/phatch/core/api.py", line 614, in apply_action_to_photo
photo = action.apply(photo, read_only_settings, cache)
File "/usr/share/phatch/phatch/actions/write_tag.py", line 49, in apply
info[tag] = value
File "/usr/share/phatch/phatch/core/pil.py", line 329, in setitem
self.assert_writable(tag)
File "/usr/share/phatch/phatch/core/pil.py", line 409, in assert_writable
raise NotWritableTagError(_('Tag "%s" is not writable.') % tag)
NotWritableTagError: Tag "Exif_Image_Software" is niet schrijfbaar.
*
Error 1:Kan niet actie Tag Schrijven toepassen op beeld 'Me.jpg' in map:
/home/wil/Pictures

u'Onmogelijk om tag "Iptc_Application2_Recordversion" weg te schrijven:\nInvalid dataset name ‘Recordversion\’'

Action:{'fields': {'Tag (Exif, Iptc)': u'Iptc_Application2_Recordversion',
'Value': u'2',
'enabled': 'yes'},
'label': 'Write Tag'}

Traceback (most recent call last):
File "/usr/share/phatch/phatch/core/api.py", line 614, in apply_action_to_photo
photo = action.apply(photo, read_only_settings, cache)
File "/usr/share/phatch/phatch/actions/write_tag.py", line 49, in apply
info[tag] = value
File "/usr/share/phatch/phatch/core/pil.py", line 349, in setitem
% (_('Impossible to write tag "%s"') % tag, message))
KeyError: u'Onmogelijk om tag "Iptc_Application2_Recordversion" weg te schrijven:\nInvalid dataset name ‘Recordversion\’'
*

[flusi100 (flusi100)]

My manual lenses are not properly detected by my camera. Overwriting the tag "Exif_Photo_LensModel" using the Image Inspector works fine, but phatch returns an error:

Error 0:Can not apply action Write Tag on image 'DSC08918.ARW' in folder:
/home/martin/tmp/phatch

Format ARW does not support overwriting "Exif_Photo_LensModel".

Action:{'fields': {'Tag (Exif, Iptc)': u'Exif_Photo_LensModel',
            'Value': u'Takumar 50mm F1.4',
            '__enabled__': 'yes'},
 'label': 'Write Tag'}

Traceback (most recent call last):
  File "/usr/share/phatch/phatch/core/api.py", line 614, in apply_action_to_photo
    photo = action.apply(photo, read_only_settings, cache)
  File "/usr/share/phatch/phatch/actions/write_tag.py", line 49, in apply
    info[tag] = value
  File "/usr/share/phatch/phatch/core/pil.py", line 324, in __setitem__
    self.assert_writable(tag)
  File "/usr/share/phatch/phatch/core/pil.py", line 429, in assert_writable
    % {'format': self['format'], 'tag': tag})
NotWritableTagError: Format ARW does not support overwriting "Exif_Photo_LensModel".
*

------------------------------------------------------
content of phatch-file:

{'actions': [{'fields': {'Tag (Exif, Iptc)': u'Exif_Photo_LensModel',
                         'Value': u'Takumar 50mm F1.4',
                         '__enabled__': 'yes'},
              'label': 'Write Tag'},
             {'fields': {'File Name': u'<filename>',
                         'In': u'<folder>/phatch',
                         '__enabled__': 'yes'},
              'label': 'Save Tags'}],
 'description': '',
 'version': '0.2.7'}