Copying an Iris cube list?

[P-Burns]

Hi,

Is there a safe method to copy an Iris cube list, so that when I modify the new cube list it doesn't change the contents of the copied cube list? It appears that the copy() method is only for Iris cubes and not cube lists.

Many thanks,
Paul

[trexfeathers]

This was discussed in #3651, and it was decided that CubeList should behave as close to list as possible. As such, if you want the members of the new CubeList to be truly different from the originals, you need to use deepcopy(). See this Stack Overflow answer.

from copy import deepcopy

new_cube_list = deepcopy(my_cube_list)

[P-Burns]

That's great. Many thanks for your clear response.