Dear all, I am trying to upload an extDocument which is located on my system without using the form but only using an external python script.(I am doing it because I have about 500 msworld files and i want to create a loop in test.py.(and I dont want to use Form)Please Help me! test.py:- def testext(self): f = open ("vin.doc","rb") dataread=f.read() fname='myvineet123' self.manage_addProduct['ExtDocument'].manage_addExtDocument(id=fname, title='t2', file=dataread) f.close() return dataread Above is my external python script.And I am calling the external method in the script below:- testpy.py:- for object in context.objectValues(['Folder']): if object.hasProperty('visible') and object.visible: context.testext(object) Now as I run testpy.py from zope i get the following error message:- Error Type: TypeError Error Value: open() argument 1 must be string without null bytes, not string Traceback (innermost last): File C:\zopewebs\lib\python\ZPublisher\Publish.py, line 223, in publish_module File C:\zopewebs\lib\python\ZPublisher\Publish.py, line 187, in publish File C:\zopewebs\lib\python\Zope\__init__.py, line 226, in zpublisher_exception_hook (Object: LockableItem) File C:\zopewebs\lib\python\ZPublisher\Publish.py, line 171, in publish File C:\zopewebs\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: testpy) File C:\zopewebs\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: testpy) File C:\zopewebs\lib\python\Shared\DC\Scripts\Bindings.py, line 324, in __call__ (Object: testpy) File C:\zopewebs\lib\python\Shared\DC\Scripts\Bindings.py, line 354, in _bindAndExec (Object: testpy) File C:\zopewebs\lib\python\Products\PythonScripts\PythonScript.py, line 363, in _exec (Object: testpy) (Info: ({'script': <PythonScript instance at 019A79D8>, 'context': <Folder instance at 019D6D00>, 'container': <Folder instance at 019D6D00>, 'traverse_subpath': []}, (), {}, None)) File Script (Python), line 3, in testpy (Object: guarded_getattr) File C:\zopewebs\lib\python\Products\ExternalMethod\ExternalMethod.py, line 274, in __call__ (Object: testext) (Info: ((<Folder instance at 0122A5A8>,), {}, None)) File C:\zopewebs\Extensions\test.py, line 5, in testext (Object: LockableItem) File C:\zopewebs\lib\python\Products\ExtDocument\ExtDocument.py, line 41, in manage_addExtDocument (Object: LockableItem) File C:\zopewebs\lib\python\Products\ExtFile\ExtFile.py, line 371, in manage_file_upload (Object: CatalogAware) File C:\zopewebs\lib\python\Products\ExtFile\ExtFile.py, line 466, in _copy (Object: CatalogAware) TypeError: (see above) Can you kindly tell me where i am going wrong?? Best Regards, Vineet Ahuja