AttributeError：“ NoneType”对象没有属性“ Mrc”

Question

以下代码出现错误。 有人可以告诉我我要去哪里了吗？ ps。我已经正确给出了.mrcfile的路径

import numpy
import Mrc
a = Mrc.bindFile('somefile.mrc')
# a is a NumPy array with the image data memory mapped from
# somefile.mrc.  You can use it directly with any function
# that will take a NumPy array.
hist = numpy.histogram(a, bins=200)
# a.Mrc is an instances of the Mrc class.  One thing
# you can do with that class is print out key information from the header.
a.Mrc.info()
# Use a.Mrc.hdr to access the MRC header fields.
wavelength0_nm = a.Mrc.hdr.wave[0]

  

AttributeError跟踪（最近一次通话）        在（）中             3 a = Mrc.bindFile（'/ home / smitha / deep-image-prior / data / Falcon_2015_05_14-20_42_18.mrc'）             4 hist = numpy.histogram（a，bins = 200）       ----> 5 a.Mrc.info（）             6个波长0_nm = a.Mrc.hdr.wave [0]             7

     

AttributeError：'NoneType'对象没有属性'Mrc'