/usr/lib/python3/dist-packages/skimage/setup.py is in python3-skimage 0.9.3-4build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42  | import os
def configuration(parent_package='', top_path=None):
    from numpy.distutils.misc_util import Configuration
    config = Configuration('skimage', parent_package, top_path)
    config.add_subpackage('_shared')
    config.add_subpackage('color')
    config.add_subpackage('data')
    config.add_subpackage('draw')
    config.add_subpackage('feature')
    config.add_subpackage('filter')
    config.add_subpackage('graph')
    config.add_subpackage('io')
    config.add_subpackage('measure')
    config.add_subpackage('morphology')
    config.add_subpackage('transform')
    config.add_subpackage('util')
    config.add_subpackage('segmentation')
    def add_test_directories(arg, dirname, fnames):
        if dirname.split(os.path.sep)[-1] == 'tests':
            config.add_data_dir(dirname)
    # Add test directories
    from os.path import isdir, dirname, join
    rel_isdir = lambda d: isdir(join(curpath, d))
    curpath = join(dirname(__file__), './')
    subdirs = [join(d, 'tests') for d in os.listdir(curpath) if rel_isdir(d)]
    subdirs = [d for d in subdirs if rel_isdir(d)]
    for test_dir in subdirs:
        config.add_data_dir(test_dir)
    return config
if __name__ == "__main__":
    from numpy.distutils.core import setup
    config = configuration(top_path='').todict()
    setup(**config)
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