[Python] Python 2 import error: cannot import name unpack_labeled_data

I m trying to import import numpy as np. This is my code

import cv2
from matplotlib import pyplot as plt

img = cv2.imread('messi5.jpg',0)
plt.imshow(img, cmap = 'gray', interpolation = 'bicubic')
plt.xticks([]), plt.yticks([])
plt.show()


But I get an error,

C:\Python27\pythonw.exe C:/Users/baqir/PycharmProjects/untitled/cdsk1.py
Traceback (most recent call last):
File "C:/Users/baqir/PycharmProjects/untitled/cdsk1.py", line 2, in <module>
from matplotlib import pyplot as plt
File "C:\Python27\lib\site-packages\matplotlib\pyplot.py", line 29, in <module>
from matplotlib.figure import Figure, figaspect
File "C:\Python27\lib\site-packages\matplotlib\figure.py", line 36, in <module>
from matplotlib.axes import Axes, SubplotBase, subplot_class_factory
File "C:\Python27\lib\site-packages\matplotlib\axes\__init__.py", line 4, in <module>
from ._subplots import *
File "C:\Python27\lib\site-packages\matplotlib\axes\_subplots.py", line 10, in <module>
from matplotlib.axes._axes import Axes
File "C:\Python27\lib\site-packages\matplotlib\axes\_axes.py", line 14, in <module>
from matplotlib import unpack_labeled_data

ImportError: cannot import name unpack_labeled_data `


I googled it but did not find any solution. Can anyone tell what here I m doing wrong?

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