[deepcopy] Support passing some additional classes to be considered for atomic deepcopy #141737
Closed as not planned
Description
Feature or enhancement
Proposal:
I often run into use-cases where I'm using external libraries that might have/use some immutable objects. In this case I can't use deepcopy() on these objects or other structures that have them nested. Again, since these are external libraries, I cannot easily add a __deepcopy__ implementation for it.
In these cases it would be helpful to have some support to pass some custom Classes to deepcopy which it should treat as atomic types. Or a non-monkey-patched alternative to adding onto the _deepcopy_dispatch.
Is it possible to support something like this? Or maybe I'm missing something and this can already be done.
Expectation: hopefully something like this --
my_copy = deepcopy(element_to_copy, atomic_types=[SomeImmutableType])Has this already been discussed elsewhere?
No response given
Links to previous discussion of this feature:
No response