The current CVS's CopySupport._get_id funtion is a little buggy. When pasting a copied object more than one time, the generated Ids are

[original] [copy of original] copy2 of copy of original copy3 of copy2 of copy of original ...

which is misleading. The attached function code (sorry, I have no diff available) fixes this to

[original] [copy of original] copy2 of original copy3 of original ...

and contains a proposal also: The first two lines

try: return ob._get_id(id) except AttributeError: pass

call a container's _get_id method if available to allow customization.

Thanks - I've added this for 1.11.0 Brian Lloyd brian@digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com