ModuleNotFoundError: No module named ‘skimage.exposure‘和用pip index versions ＜package＞ 查找所有可以安装的版本

问题：

Traceback (most recent call last):
  File "test.py", line 15, in <module>
    from util.visualizer import Visualizer
  File "D:\wGAN\mc-gan2\util\visualizer.py", line 14, in <module>
    from skimage import data, img_as_float
  File "D:\Anaconda3\envs\torch\lib\site-packages\skimage\__init__.py", line 157, in <module>
    from .util.dtype import (img_as_float32,
  File "D:\Anaconda3\envs\torch\lib\site-packages\skimage\util\__init__.py", line 16, in <module>
    from ._montage import montage
  File "D:\Anaconda3\envs\torch\lib\site-packages\skimage\util\_montage.py", line 4, in <module>
    from .. import exposure
  File "D:\Anaconda3\envs\torch\lib\site-packages\skimage\_shared\lazy.py", line 62, in __getattr__
    return importlib.import_module(f'{package_name}.{name}')
  File "D:\Anaconda3\envs\torch\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named 'skimage.exposure'

原因：

查了一下，skimage应该是有这个exposure模块的，如果有问题，说明没有安装好。具体原因不是很清楚。 

解决办法：

pip uninstall scikit-image

pip index versions scikit-image (查找所有可以安装的版本）

pip install scikit-image==0.18.3

本文结束