Azure Function导入Numpy报ImportError，已通过Pip安装仍异常

运行Azure Function时触发ImportError，提示不能从Numpy源码目录导入该库，需退出源码目录重启Python解释器，但已通过Pip安装Numpy后问题依旧。相关信息如下：

错误日志 #

Worker failed to function id 2c284181-1e21-4200-b5ea-b7d226696206.
[2023-11-30T03:24:02.694Z] Result: Failure
[2023-11-30T03:24:02.694Z] Exception: ImportError: Error importing numpy: you should not try to import numpy from
[2023-11-30T03:24:02.694Z]         its source directory; please exit the numpy source tree, and relaunch
[2023-11-30T03:24:02.694Z]         your python interpreter from there. Troubleshooting Guide: https://aka.ms/functions-modulenotfound
[2023-11-30T03:24:02.695Z] Stack:   File "/usr/local/lib/node_modules/azure-functions-core-tools/bin/workers/python/3.9/OSX/X64/azure_functions_worker/dispatcher.py", line 314, in _handle__function_load_request
[2023-11-30T03:24:02.695Z]     func = loader.load_function(
[2023-11-30T03:24:02.695Z]   File "/usr/local/lib/node_modules/azure-functions-core-tools/bin/workers/python/3.9/OSX/X64/azure_functions_worker/utils/wrappers.py", line 42, in call
[2023-11-30T03:24:02.695Z]     raise extend_exception_message(e, message)
[2023-11-30T03:24:02.695Z]   File "/usr/local/lib/node_modules/azure-functions-core-tools/bin/workers/python/3.9/OSX/X64/azure_functions_worker/utils/wrappers.py", line 40, in call
[2023-11-30T03:24:02.695Z]     return func(*args, **kwargs)
[2023-11-30T03:24:02.695Z]   File "/usr/local/lib/node_modules/azure-functions-core-tools/bin/workers/python/3.9/OSX/X64/azure_functions_worker/loader.py", line 85, in load_function
[2023-11-30T03:24:02.695Z]     mod = importlib.import_module(fullmodname)
[2023-11-30T03:24:02.695Z]   File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/importlib/__init__.py", line 127, in import_module
[2023-11-30T03:24:02.695Z]     return _bootstrap._gcd_import(name[level:], package, level)
[2023-11-30T03:24:02.695Z]   File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
[2023-11-30T03:24:02.695Z]   File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
[2023-11-30T03:24:02.695Z]   File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
[2023-11-30T03:24:02.696Z]   File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
[2023-11-30T03:24:02.696Z]   File "<frozen importlib._bootstrap_external>", line 850, in exec_module
[2023-11-30T03:24:02.696Z]   File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
[2023-11-30T03:24:02.696Z]   File "/Users/zero/Documents/Github/project/fc/__init__.py", line 7, in <module>
[2023-11-30T03:24:02.696Z]     import numpy as np
[2023-11-30T03:24:02.696Z]   File "/Users/zero/Library/Python/3.9/lib/python/site-packages/numpy/__init__.py", line 135, in <module>
[2023-11-30T03:24:02.696Z]     raise ImportError(msg) from e

函数代码（init.py） #

import os
import re
import logging
from pathlib import Path
import numpy as np

import azure.functions as func


def main(req: func.HttpRequest) -> func.HttpResponse:
    logging.info('A function processed a request.')

    return func.HttpResponse(
        "success",
        status_code=200,
    )

依赖配置（requirements.txt） #

numpy

解决步骤 #

• 检查项目目录是否存在冲突文件：确认你的Azure Function项目目录（/Users/zero/Documents/Github/project/fc/）下没有numpy文件夹或numpy.py文件，这类文件会让Python优先导入本地文件而非已安装的库。如果存在，直接删除或重命名。
• 验证环境与依赖路径匹配：运行which python3.9确认当前使用的Python解释器路径，再运行pip3.9 show numpy查看Numpy的安装位置，确保两者对应。若不匹配，切换到正确环境重新安装：

  python3.9 -m pip install numpy --upgrade --force-reinstall
  

• 清理缓存并重启函数：停止本地运行的Azure Function，删除项目目录下的.venv（若使用虚拟环境）和__pycache__文件夹，再重新启动函数：

  rm -rf .venv __pycache__
  func start
  

• 确保虚拟环境正确使用：如果使用虚拟环境，先激活再安装依赖和运行函数：

  python3.9 -m venv .venv
  source .venv/bin/activate  # macOS/Linux环境
  pip install -r requirements.txt
  func start
  

内容的提问来源于stack exchange，提问作者Nurdin