Python: Copied Object Not Showing in Outliner When I copy an object using bpy.context.active_object.copy() the new object doesn't show up in the Outliner even though it appears when I list() objects in the Python shell.
Questions:

Is there a second step to get the object to show in the Outliner?
Or perhaps it's only copying the object's data? (If so, to what purpose?)
Are there no companion functions, ie: paste() and/or cut()? (Command line completion yields nothing.)

Note: bpy.ops.object.duplicate() makes a copy that does show up in the Outliner, so these questions aren't about how to make a working copy/duplicate. I want to understand the purpose of copy().
Link it to a collection
Prior to 2.8 a copied object required linking to the scene's objects collection.  For 2.8+ link it to a collection.
It will show in the outliner when collection is linked to a scene, or is the base scene collection.
The duplicate operator links the dupe to the context collection.
import bpy
from bpy import context


ob = context.object.copy()
context.collection.objects.link(ob)

link new object to scene with python in 2.8