Please, can you explain me why this bug and path was retracted from Collector with message ?: "Retracted by submitter (in Zope-Dev mailinglist, forgot to define USE_EXTENSION_CLASS)." This path intended for 'official' version 2.2.0b3, _not only_ for version compiled from sources. Please compare old good code(2.1.6), with buggy new code(2.2.0b3) for clarification why new code is buggy: lib/python/OFS/Image.py ----------old(2.1.6):------------------- def _read_data(self, file): n=1<<16 if type(file) is StringType: size=len(file) if size < n: return file, size return Pdata(file), size seek=file.seek read=file.read ... -------new buggy ('official' 2.2.0b3)------------- def _read_data(self, file): n=1<<16 if type(file) is StringType: size=len(file) if size < n: return file, size return Pdata(file), size if file.__class__ is Pdata: ## !!! this new code is buggy because if type(file) is not 'instance', size=len(file) ## !!! file variable don't have __class__ attribute (eg: if type(file) == FileType) return file, size ## !!! First is needed check out if file is 'instance' type. Would be: ## !!! if type(file) is InstanceType and file.__class__ is Pdata: seek=file.seek read=file.read ... ------------------------------------------ This bug makes impossible to use code which works ok with old Zope-s (prior 2.2.0) eg: f = open('path/image.gif', 'rb') OFS.Image.manage_addImage(root, 'logo', f, 'logo') f.close() With Zope 2.2.0b3 this code produces bug with traceback eg: """ Zope Error Zope has encountered an error while publishing this resource. Error Type: AttributeError Error Value: __class__ <!-- Traceback (innermost last): File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 222, in publish_module File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 187, in publish File C:\Program Files\Zope\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 171, in publish File C:\Program Files\Zope\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_addEtailer) File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: manage_addEtailer) File C:\Program Files\Zope\lib\python\Products\Etailer\Etailer.py, line 99, in manage_addEtailer File C:\Program Files\Zope\lib\python\OFS\Image.py, line 414, in manage_addImage (Object: ElementWithAttributes) File C:\Program Files\Zope\lib\python\OFS\Image.py, line 263, in manage_upload (Object: logo) File C:\Program Files\Zope\lib\python\OFS\Image.py, line 292, in _read_data (Object: logo) AttributeError: (see above) --> """ Simple path which I was send to Collector avoid this problem. Adam Karpierz karpierz@itl.pl