使用 Conda 和 Spyder 安装 OpenCV

Question

我在使用 Conda 安装 OpenCV 时遇到问题。我尝试运行许多命令，但没有一个有效。例如，当我运行conda install -c anaconda opencv（按照https://anaconda.org/anaconda/opencv）时，我得到了这个错误：

UnsatisfiableError: The following specifications were found
to be incompatible with the existing python installation in your environment:

Specifications:

   - opencv -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']

Your python: python=3.8

If python is on the left-most side of the chain, that's the version you've asked for.
When python appears to the right, that indicates that the thing on the left is somehow
not available for the python version you are constrained to. Note that conda will not
change your python version to a different minor version unless you explicitly specify
that.

为什么会发生这种情况，如何在 Spyder 中安装 OpenCV？

谢谢。

Answer 1

这个问题的答案是将 Anaconda 更新到最新版本：

conda update -n base -c defaults conda

那么你就可以正常安装opencv了：

conda install -c conda-forge opencv

Answer 2

Python 3.8 相对较新。根据错误，conda 包管理器似乎仍然不支持 Python 3.8。

尝试使用以下命令下载：

pip install opencv-python

如需正确指南，请参阅https://pypi.org/project/opencv-python/