diff options
Diffstat (limited to 'src/pyexiv2.py')
| -rw-r--r-- | src/pyexiv2.py | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/src/pyexiv2.py b/src/pyexiv2.py index 0e2ebb4..129b854 100644 --- a/src/pyexiv2.py +++ b/src/pyexiv2.py @@ -29,6 +29,7 @@ # 08-Jan-07, Olivier Tilloy: improved the datetime conversion algo # 10-Jan-07, Olivier Tilloy: added method getIptcTagValue # 17-Jan-07, Olivier Tilloy: improved date and time conversion algos +# added method setIptcTagValue # # ****************************************************************************** @@ -301,7 +302,7 @@ class Image(libpyexiv2.Image): # of bytes (type 'Undefined'), in which case value must be passed as # a string correctly formatted, using utility function # StringToUndefined(). - strVal = value + strVal = str(value) self.setExifTag(key, strVal) def getIptcTagValue(self, key): @@ -331,6 +332,40 @@ class Image(libpyexiv2.Image): # empty type and value return + def setIptcTagValue(self, key, value): + """ + Set the value associated to a key in IPTC metadata. + + Set the value associated to a key in IPTC metadata. + The new value passed should be typed using Python's built-in types or + modules such as datetime when the value contains a date or a time + (e.g. the IPTC tags 'Iptc.Application2.DateCreated' and + 'Iptc.Application2.TimeCreated'), the method takes care + of converting it before setting the internal IPTC tag value. + + Keyword arguments: + key -- the IPTC key of the requested metadata tag + value -- the new value for the requested metadata tag + """ + valueType = value.__class__ + if valueType == int or valueType == long: + strVal = str(value) + elif valueType == datetime.date: + strVal = value.strftime('%Y-%m-%d') + elif valueType == datetime.time: + # TODO: two distinct cases + # The only legal format for a time is '%H:%M:%S±%H:%M', + # but if the UTC offset is absent (format '%H:%M:%S'), the time can + # still be set (exiv2 is permissive). + strVal = value + else: + # Value must already be a string. + # Warning: no distinction is possible between values that really are + # strings (type 'String') and those that are of type 'Undefined'... + # TODO: handle this correctly + strVal = str(value) + self.setIptcTag(key, strVal) + def _test(): print 'testing library pyexiv2...' # TODO: various tests |