create_keyframes.py

import bpy
from math import pi

## Create a set of keyframes for Suzanne using Blender python

bpy.ops.graph.interpolation_type(type="CUBIC")

suzie = bpy.data.objects['Suzanne']

# Each keyframe is (frame, location, rotation, scale)
keyframes = [
    (1, (0, 0, 1), (0, 0, 0),         (1, 1, 1)),
    (11, (1, 1, 1), (pi/2, pi/2, pi), (1, 1, 1)),
    (21, (1, 2, 1), (pi/2, pi/2, pi), (0.5, 0.5, 0.5)),
    (31, (1, 2, 1), (pi, pi, 0),      (0.5, 0.5, 0.5)),
    (41, (2, 2, 3), (0, 0, 0),        (3, 3, 3))
]

for k in keyframes:
    bpy.context.scene.frame_set(k[0])
    suzie.location = k[1]
    suzie.rotation_euler = k[2]
    suzie.scale = k[3]
    suzie.keyframe_insert(data_path="location")
    suzie.keyframe_insert(data_path="rotation_euler")
    suzie.keyframe_insert(data_path="scale")