(myvenv) PS E:\Python> pip install opencv-python
Collecting opencv-python
Using cached opencv-python-4.10.0.84.tar.gz (95.1 MB)
Installing build dependencies ... error
error: subprocess-exited-with-error
× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> [66 lines of output]
Ignoring numpy: markers 'python_version == "3.6" and platform_machine != "aarch64" and platform_machine != "arm64"' don't match your environment
Ignoring numpy: markers 'python_version == "3.7" and platform_machine != "aarch64" and platform_machine != "arm64"' don't match your environment
Ignoring numpy: markers 'python_version == "3.8" and platform_machine != "aarch64" and platform_machine != "arm64"' don't match your environment
Ignoring numpy: markers 'python_version < "3.9" and sys_platform == "linux" and platform_machine == "aarch64"' don't match your environment
Ignoring numpy: markers 'python_version < "3.9" and sys_platform == "darwin" and platform_machine == "arm64"' don't match your environment
Collecting cmake>=3.1
Using cached cmake-3.30.3.tar.gz (31 kB)
Installing build dependencies: started
Installing build dependencies: finished with status 'done'
Getting requirements to build wheel: started
Getting requirements to build wheel: finished with status 'done'
Installing backend dependencies: started
Installing backend dependencies: finished with status 'done'
Preparing metadata (pyproject.toml): started
Preparing metadata (pyproject.toml): finished with status 'done'
Collecting numpy>=2.0.0
Downloading numpy-2.0.2.tar.gz (18.9 MB)
---------------------------------------- 18.9/18.9 MB 3.2 MB/s eta 0:00:00
Installing build dependencies: started
Installing build dependencies: finished with status 'done'
Getting requirements to build wheel: started
Getting requirements to build wheel: finished with status 'done'
Installing backend dependencies: started
Installing backend dependencies: finished with status 'done'
Preparing metadata (pyproject.toml): started
Preparing metadata (pyproject.toml): finished with status 'error'
error: subprocess-exited-with-error
Preparing metadata (pyproject.toml) did not run successfully.
exit code: 1
[23 lines of output]
+ E:\Python\myvenv\bin\python.exe C:\Users\admin\AppData\Local\Temp\pip-install-nzei4sh_\numpy_a368f9e2aa274993be96d795ef79ddd4\vendored-mes
on\meson\meson.py setup C:\Users\admin\AppData\Local\Temp\pip-install-nzei4sh_\numpy_a368f9e2aa274993be96d795ef79ddd4 C:\Users\admin\AppData\Local\T
emp\pip-install-nzei4sh_\numpy_a368f9e2aa274993be96d795ef79ddd4\.mesonpy-cclotgs2 -Dbuildtype=release -Db_ndebug=if-release -Db_vscrt=md --native-file=C:\Users\admin\AppData\Local\Temp\pip-install-nzei4sh_\numpy_a368f9e2aa274993be96d795ef79ddd4\.mesonpy-cclotgs2\meson-python-native-file.ini
The Meson build system
Version: 1.4.99
Source dir: C:\Users\admin\AppData\Local\Temp\pip-install-nzei4sh_\numpy_a368f9e2aa274993be96d795ef79ddd4
Build dir: C:\Users\admin\AppData\Local\Temp\pip-install-nzei4sh_\numpy_a368f9e2aa274993be96d795ef79ddd4\.mesonpy-cclotgs2
Build type: native build
Project name: NumPy
Project version: 2.0.2
C compiler for the host machine: cc (gcc 12.1.0 "cc (Rev2, Built by MSYS2 project) 12.1.0")
C linker for the host machine: cc ld.bfd 2.38
C++ compiler for the host machine: c++ (gcc 12.1.0 "c++ (Rev2, Built by MSYS2 project) 12.1.0")
C++ linker for the host machine: c++ ld.bfd 2.38
Cython compiler for the host machine: cython (cython 3.0.11)
Host machine cpu family: x86_64
Host machine cpu: x86_64
Program python found: YES (E:\Python\myvenv\bin\python.exe)
Found pkg-config: YES (C:\mingw64\bin\pkg-config.EXE) 1.8.0
Could not find Python3 library 'E:\\Python\\myvenv\\lib\\libpython3.9.dll.a'
Run-time dependency python found: NO (tried pkgconfig, pkgconfig and sysconfig)
..\meson.build:41:12: ERROR: Python dependency not found
A full log can be found at C:\Users\admin\AppData\Local\Temp\pip-install-nzei4sh_\numpy_a368f9e2aa274993be96d795ef79ddd4\.mesonpy-cclotgs2\meson-logs\meson-log.txt
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed
Encountered error while generating package metadata.
See above for output.
note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error
× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.
note: This error originates from a subprocess, and is likely not a problem with pip.
我设置了cmake并安装了很多次，它仍然无法运行。
根据错误信息，看来问题出在 NumPy 的安装上，而不是 OpenCV 或 CMake 上。错误信息 "Could not find Python3 library 'E:\Python\myvenv\lib\libpython3.9.dll.a'" 表明 NumPy 安装程序找不到你的 Python 环境中的 Python 库文件。
以下是一些可能的解决方案：
-
确保你的虚拟环境处于活动状态： 在运行
pip install命令之前，请确保你已使用.\myvenv\Scripts\activate激活了你的虚拟环境。 -
升级 pip： 尝试升级 pip 到最新版本：
bash python -m pip install --upgrade pip -
手动安装 NumPy： 尝试从 https://pypi.org/project/numpy/#files 下载对应你 Python 版本的 NumPy
.whl文件，然后在你的虚拟环境中使用以下命令安装：bash pip install numpy-*.whl(将numpy-*.whl替换为你下载的文件名) -
检查环境变量： 确保你的系统环境变量中包含 Python 安装路径和你的虚拟环境路径。
-
重新创建虚拟环境： 尝试删除当前虚拟环境并重新创建一个新的：
bash deactivate # 退出当前虚拟环境 rm -rf myvenv # 删除虚拟环境文件夹 python -m venv myvenv # 重新创建虚拟环境 .\myvenv\Scripts\activate # 激活虚拟环境 -
使用管理员权限运行： 尝试使用管理员权限运行你的命令提示符或 PowerShell，然后重试安装。
如果以上方法都无法解决问题，请提供以下信息以便我更好地帮助你：
- 你的操作系统版本
- 你的 Python 版本
- 你的 PyCharm 版本
- 你的 CMake 版本
希望这些信息能帮到你！
标签：python,opencv From： 79017744