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1.现象
今天学习PaddleScience时，遇到qmc导入错误，具体如下：
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/matplotlib/__init__.py:107: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
from collections import MutableMapping
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/matplotlib/rcsetup.py:20: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
from collections import Iterable, Mapping
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/matplotlib/colors.py:53: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
from collections import Sized
Traceback (most recent call last):
File "ldc2d_steady_train.py", line 15, in <module>
import paddlescience as psci
File "/home/aistudio/ldc_project/PaddleScience/paddlescience/__init__.py", line 21, in <module>
from . import geometry
File "/home/aistudio/ldc_project/PaddleScience/paddlescience/geometry/__init__.py", line 15, in <module>
from .rectangular import Rectangular, Cube, CircleInRectangular, CylinderInCube
File "/home/aistudio/ldc_project/PaddleScience/paddlescience/geometry/rectangular.py", line 19, in <module>
from scipy.stats import qmc
ImportError: cannot import name 'qmc' from 'scipy.stats' (/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/scipy/stats/__init__.py)
经查发现
pip list|grep scipy
scipy 1.6.3
Note: you may need to restart the kernel to use updated packages.
发现 aistudio 上默认scipy 版本为1.6.3，推测版本过低导致。
2.问题解决
qmc模块是在scipy的1.7.0版本（2021年7月左右）中添加的。 故需要更新软件包。
!pip install -U scipy
pip list|grep scipy
scipy 1.7.3
Note: you may need to restart the kernel to use updated packages.
更新后问题排除！！！
