Create keyboard shortcut for an operator using python?

Question

How can I create a keyboard shortcut for a specific operator with using the python API?

Answer 1

Minimal add-on example using keymap_items.new() to register a new hotkey CtrlW in 3d View:

import bpy
bl_info = {
    "name": "Your Addon Name",
    "author": "Author Name",
    "version": (0, 1),
    "blender" : (2, 80, 0),
    "location": "",
    "warning": "",
    "wiki_url": "",
    "tracker_url": "",
    "category": ""
}
class OBJECT_OT_CustomOp(bpy.types.Operator):
    """Tooltip"""
    bl_idname = "object.simple_operator"
    bl_label = "Simple Object Operator"
def execute(self, context):
    print (self.bl_idname)
    return {'FINISHED'}



addon_keymaps = []
def register():
    bpy.utils.register_class(OBJECT_OT_CustomOp)
# Add the hotkey
wm = bpy.context.window_manager
kc = wm.keyconfigs.addon
if kc:
    km = wm.keyconfigs.addon.keymaps.new(name='3D View', space_type='VIEW_3D')
    kmi = km.keymap_items.new(OBJECT_OT_CustomOp.bl_idname, type='W', value='PRESS', ctrl=True)
    addon_keymaps.append((km, kmi))



def unregister():
    bpy.utils.unregister_class(OBJECT_OT_CustomOp)
# Remove the hotkey
for km, kmi in addon_keymaps:
    km.keymap_items.remove(kmi)
addon_keymaps.clear()



if name == "main":
    register()
# test call
#bpy.ops.object.simple_operator()