diff options
Diffstat (limited to 'src/pyexiv2.py')
| -rw-r--r-- | src/pyexiv2.py | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/pyexiv2.py b/src/pyexiv2.py index 9435ba7..eefda51 100644 --- a/src/pyexiv2.py +++ b/src/pyexiv2.py @@ -286,6 +286,11 @@ class Image(libpyexiv2.Image): setIptcTagValue -- set the value associated to a key in IPTC metadata """ + def __init__(self, filename): + libpyexiv2.Image.__init__(self, filename) + self.__exifTagsDict = {} + self.__iptcTagsDict = {} + def getExifTagValue(self, key): """ Get the value associated to a key in EXIF metadata. @@ -447,6 +452,27 @@ class Image(libpyexiv2.Image): strVal = str(value) self.setIptcTag(key, strVal, index) + def __getitem__(self, key): + tagFamily = key[:4] + if tagFamily == 'Exif': + try: + return self.__exifTagsDict[key] + except KeyError: + value = self.getExifTagValue(key) + self.__exifTagsDict[key] = value + return value + elif tagFamily == 'Iptc': + try: + return self.__iptcTagsDict[key] + except KeyError: + value = self.getIptcTagValue(key) + if len(value) == 1: + value = value[0] + self.__iptcTagsDict[key] = value + return value + else: + raise KeyError('Invalid tag identifier') + def _test(): print 'testing library pyexiv2...' # TODO: various tests |