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Describe the bug baetyl基于树莓派4代B型Raspbian操作系统对功能函数(.py)调用时出现无法引用依赖包问题
To Reproduce
Expected behavior 成功的引用依赖包(机器学习相关的依赖包numpu、pandas等等)来实现所需功能
Screenshots
OS-platform (please complete the following information):
The text was updated successfully, but these errors were encountered:
@zhaoxu6666 你好!首先,非常感谢您提出的问题!针对您提出的问题,我们做了实际测试。实际测试脚本中引入了 pandas 和 scikit-learn 机器学习库,通过 pip download <libpackage> 命令我们可以发现 pandas 和 scikit-learn 的依赖如下:
pandas
scikit-learn
pip download <libpackage>
pip download pandas pip download scikit-learn
执行完后可以发现,pandas 主要依赖 numpy、dateutil、pytz、six 等库;scikit-learn 主要依赖 numpy、scipy、joblib 等库。
numpy
dateutil
pytz
six
scipy
joblib
参考 文档,通常只要把下载的依赖库解压与测试脚本放在同一目录下,并以 package 形式引入即可。
但是,实际测试来看,在 Raspberry pi 4 model B 上的确出现了问题截图中的异常,经查询资料发现,pandas 和 scikit-learn 安装使用除了上述已列出的第三方库外,还对与系统相关的 Cython 库有依赖(单独编译 pandas 和 scikit-learn 库会有相应提示),需要在具备 Cython 环境的基础上才能正确使用;此外,scikit-learn 依赖的 scipy 的构建和安装需要依赖发行版系统。要在没有预编译所需库软件包的操作系统上构建 SciPy(numpy 同理),必须先构建然后静态链接到 Fortran 库 BLAS 和 LAPACK。
Cython
SciPy
因此,对于 pandas 和 scikit-learn 库的使用不能参考普通第三方库引入的方式。这里提供一个建议:可以在我们官方提供的 Python runtime Dockerfile 的基础上直接把所需要的特殊第三方库(如 pandas 和 scikit-learn)在打包、构建的容器镜像时引入。
相关资料可参考: [1] https://stackoverflow.com/questions/14570011/explain-why-numpy-should-not-be-imported-from-source-directory [2] https://stackoverflow.com/questions/7496547/does-python-scipy-need-blas [3] https://docs.scipy.org/doc/scipy-1.1.0/reference/building/linux.html
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Describe the bug
baetyl基于树莓派4代B型Raspbian操作系统对功能函数(.py)调用时出现无法引用依赖包问题
To Reproduce
![image](https://user-images.githubusercontent.com/26039881/68600822-25b39b80-04de-11ea-875a-3a5b7dc1640e.png)
Expected behavior
成功的引用依赖包(机器学习相关的依赖包numpu、pandas等等)来实现所需功能
Screenshots
![image](https://user-images.githubusercontent.com/26039881/68600572-b9389c80-04dd-11ea-84a0-5592831cc004.png)
OS-platform (please complete the following information):
The text was updated successfully, but these errors were encountered: