Error in using the Zernike moments. about mahotas HOT 6 OPEN

/usr/local/lib/python3.7/dist-packages/mahotas/features/__init__.py in <module>()
      4 #
      5 
----> 6 from .texture import haralick
      7 from .tas import tas, pftas
      8 from .zernike import zernike, zernike_moments

/usr/local/lib/python3.7/dist-packages/mahotas/features/texture.py in <module>()
      6 
      7 import numpy as np
----> 8 from . import _texture
      9 from ..internal import _verify_is_integer_type
     10 

ImportError: numpy.core.multiarray failed to import

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