已安装 opencv-python 但无法导入（ModuleNotFoundError: No module named 'cv2'）

Question

我安装了所有的opencv模块：

(venv) D:\#6>pip install opencv-python-headless
Collecting opencv-python-headless
  Downloading opencv_python_headless-4.5.5.64-cp36-abi3-win_amd64.whl (35.3 MB)
     ---------------------------------------- 35.3/35.3 MB 9.2 MB/s eta 0:00:00
Requirement already satisfied: numpy>=1.17.3 in d:\venv\lib\site-packages (from opencv-python-headless) (1.22.4)
Installing collected packages: opencv-python-headless
Successfully installed opencv-python-headless-4.5.5.64
(venv) D:\#6>pip install opencv-contrib-python-headless
Collecting opencv-contrib-python-headless
  Downloading opencv_contrib_python_headless-4.5.5.64-cp36-abi3-win_amd64.whl (42.1 MB)
     ---------------------------------------- 42.1/42.1 MB 7.5 MB/s eta 0:00:00
Requirement already satisfied: numpy>=1.14.5 in d:\venv\lib\site-packages (from opencv-contrib-python-headless) (1.22.4)
Installing collected packages: opencv-contrib-python-headless
Successfully installed opencv-contrib-python-headless-4.5.5.64
(venv) D:\#6>pip install opencv-python
Requirement already satisfied: opencv-python in d:\venv\lib\site-packages (4.5.5.64)
Requirement already satisfied: numpy>=1.14.5 in d:\venv\lib\site-packages (from opencv-python) (1.22.4)
(venv) D:\#6>pip install opencv-contrib-python
Requirement already satisfied: opencv-contrib-python in d:\venv\lib\site-packages (4.5.5.64)
Requirement already satisfied: numpy>=1.17.3 in d:\venv\lib\site-packages (from opencv-contrib-python) (1.22.4)

我的点子列表：

Package                        Version
------------------------------ --------
numpy                          1.22.4
opencv-contrib-python          4.5.5.64
opencv-contrib-python-headless 4.5.5.64
opencv-python                  4.5.5.64
opencv-python-headless         4.5.5.64
Pillow                         9.1.1
pip                            22.1.2
PyYAML                         6.0
setuptools                     58.1.0

当我将 cv2 导入代码时，它显示一个错误：

(venv) D:\#6>py
Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cv2'

那么我该如何解决这个问题呢？ 请帮帮我。
谢谢你=)

Answer 1

您安装了冲突的模块。 删除所有内容，安装其中一个。

opencv-contrib-python          4.5.5.64
opencv-contrib-python-headless 4.5.5.64
opencv-python                  4.5.5.64
opencv-python-headless         4.5.5.64

您在任何时候都不能拥有超过一个。

它们都包含基本的 OpenCV 模块。

-headless变体省略了highgui 。

-contrib变体添加contrib 模块，但不是插件。 它们是包含所有基本模块的完整包。

Answer 2

使用“ python.exe -m pip install <module> ”而不是“ pip install <module> ”