#import blender stuff
import bpy

#loop through all objects in the scene
#bpy.context.scene.objects is a list
for obj in bpy.context.scene.objects:
    #use only real opbject, not the camera or lamp
    if obj.type == 'MESH':
        #select the current object
        obj.select = True
        #remove the current selected object (which will always be obj)
        bpy.ops.object.delete()

#create a new cube object
bpy.ops.mesh.primitive_cube_add(location=(0, 0, 0))

#select this object
obj = bpy.context.scene.objects[0]

#move to another location
obj.location = 5.0, 0.0, 0.0


print('----------')
# print all objects
for obj in bpy.data.objects:
    print(obj.name)