ModuleNotFoundError:尽管安装了但没有名为“cv2"的模块 [英] ModuleNotFoundError: No module named 'cv2' despite installation

问题描述

当我在 Python 中导入 cv2 时，我得到

When I import cv2 in Python I get

ModuleNotFoundError: No module named 'cv2'

我用

pip3 install opencv-python

当我再次尝试安装时，它说

When I try to install it again, it says

Requirement already satisfied: opencv-python in /usr/local/lib/python3.7/dist-packages (4.0.1.24)
Requirement already satisfied: numpy>=1.14.5 in /usr/local/lib/python3.7/dist-packages (from opencv-python) (1.16.2)

我成功地再次检查了相应的 Python 文件夹中是否有可用的包.我什至为 Python2.7 安装了它，尽管 Python3.7 是我的标准.我从字面上通读了我可以在 Stackoverflow 上找到的所有关于错误的信息，现在我已经没有想法了.有什么想法吗?

I successfully double-checked if package is available in the appropriate Python folder. I even installed it for Python2.7 though Python3.7 is my standard. I literally read through all information I could find on Stackoverflow regarding the error and I am run out of ideas now. Any ideas?

我使用 Ubuntu 18.04 和 Python 3.7.

I use Ubuntu 18.04 and Python 3.7.

推荐答案

尝试使用操作系统的包管理器进行安装(注意词序:opencv 之前的python):

Try installing with your OS's package manager (notice the word order: python before opencv):

sudo apt-get install python-opencv

这在 Ubuntu 18 上对我有用.我也无法使用 pip 让它工作.

This worked for me on Ubuntu 18. I also was unable to get it to work using pip.

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