Ch1

import importlib
from distutils.version import LooseVersion

# check that all packages are installed (see requirements.txt file)
required_packages = {'jupyter',
                     'numpy',
                     'matplotlib',
                     'ipywidgets',
                     'scipy',
                     'pandas',
                     'numba',
                     'multiprocess',
                     'SimpleITK'
                    }

problem_packages = list()
# Iterate over the required packages: If the package is not installed
# ignore the exception.
for package in required_packages:
    try:
        p = importlib.import_module(package)
    except ImportError:
        problem_packages.append(package)

if len(problem_packages) == 0:
    print('All is well.')
else:
    print('The following packages are required but not installed: ' \
          + ', '.join(problem_packages))

All is well.

import matplotlib.pyplot as plt
import SimpleITK as sitk

image = sitk.Image(256, 128, 64, sitk.sitkInt16)
image_2D = sitk.Image(64, 64, sitk.sitkFloat32)
image_2D = sitk.Image([32,32], sitk.sitkUInt32)
image_RGB = sitk.Image([128,128], sitk.sitkVectorUInt8, 3)
nda = sitk.GetArrayFromImage(image)
plt.imshow(nda[:,:,0])

<matplotlib.image.AxesImage at 0x7f6042bb3400>