在Azure函数中导入python cv2时出错

时间:2019-09-03 15:07:08

标签: python azure azure-functions cv2

我们正在使用Azure CLI部署基于Python的Azure函数,但是在导入cv2库时出现以下错误。

ImportError:libgthread-2.0.so.0:无法打开共享对象文件:没有这样的文件或目录

我们没有使用任何docker映像。宁愿使用非基于docker的解决方案。

Exception: ImportError: libgthread-2.0.so.0: cannot open shared object file: No such file or directory
Stack:   File "/usr/local/lib/python3.6/site-packages/azure_functions_worker/dispatcher.py", line 239, in _handle__function_load_request
    func_request.metadata.entry_point)
  File "/usr/local/lib/python3.6/site-packages/azure_functions_worker/loader.py", line 66, in load_function
    mod = importlib.import_module(fullmodname)
  File "/usr/local/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 941, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/site/wwwroot/FaceFinderHttpTrigger/__init__.py", line 11, in <module>
    import cv2
  File "/home/site/wwwroot/.python_packages/lib/python3.6/site-packages/cv2/__init__.py", line 3, in <module>
    from .cv2 import *

1 个答案:

答案 0 :(得分:0)

有一个类似的SO线程Azure Functions: In a Python function under Linux, how do I import a non-standard module such as opencv/imutils?,与您的问题相同。

由于libgthread共享库是Linux基础库,根据我的经验,这似乎是由于Azure CLI无法将这些具有本地依赖项的Python软件包打包为Azure Function引起的。因此,我认为唯一的解决方案是按照官方文档Create a function on Linux using a custom image所述,自行将Azure Function作为Docker容器构建,或尝试将Azure CLI命令func azure functionapp publish--build-native-deps选项一起使用使用Docker容器构建和配置依赖项。

据我所知,有一个博客OPENCV WITH AZURE FUNCTIONS似乎可以与opencv一起用于Azure Functions,但据我看来,它仅在本地开发环境上运行,而不是在云上运行。因此,我仍然建议您使用本机依赖项将应用程序部署为该应用程序的Docker contaier。