ImportError: bad magic number in 'pickle'

[Nickson]

Traceback (most recent call last):
File "tiny_face_eval.py", line 6, in
import tensorflow as tf
File "/Users/nicksonmbwavi/anaconda3/envs/mypython3/lib/python3.6/site-packages/tensorflow/init.py", line 22, in
from tensorflow.python import pywrap_tensorflow # pylint: disable=unused-import
File "/Users/nicksonmbwavi/anaconda3/envs/mypython3/lib/python3.6/site-packages/tensorflow/python/init.py", line 47, in
import numpy as np
File "/Users/nicksonmbwavi/anaconda3/envs/mypython3/lib/python3.6/site-packages/numpy/init.py", line 142, in
from . import add_newdocs
File "/Users/nicksonmbwavi/anaconda3/envs/mypython3/lib/python3.6/site-packages/numpy/add_newdocs.py", line 13, in
from numpy.lib import add_newdoc
File "/Users/nicksonmbwavi/anaconda3/envs/mypython3/lib/python3.6/site-packages/numpy/lib/init.py", line 8, in
from .type_check import *
File "/Users/nicksonmbwavi/anaconda3/envs/mypython3/lib/python3.6/site-packages/numpy/lib/type_check.py", line 11, in
import numpy.core.numeric as _nx
File "/Users/nicksonmbwavi/anaconda3/envs/mypython3/lib/python3.6/site-packages/numpy/core/init.py", line 38, in
from . import numeric
File "/Users/nicksonmbwavi/anaconda3/envs/mypython3/lib/python3.6/site-packages/numpy/core/numeric.py", line 43, in
import pickle
ImportError: bad magic number in 'pickle': b'\x80\x04\x95\x0f'