Installing OpenCV with Conda and Spyder

问题

I'm having trouble installing OpenCV with Conda. I tried running numerous commands, none of which worked. For example, when I ran conda install -c anaconda opencv (as per https://anaconda.org/anaconda/opencv) I get this error:

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.

Why is this happening and how can I install OpenCV in Spyder?

Thanks.

回答1:

Python 3.8 is relatively new. And according to the error it looks like that conda package manager still does not support Python 3.8.

Try downloading using this command:

pip install opencv-python

For a proper guide, refer https://pypi.org/project/opencv-python/

回答2:

The answer for this issue is updating Anaconda to the newest version:

conda update -n base -c defaults conda

then you can install opencv normally using:

conda install -c conda-forge opencv

来源：https://stackoverflow.com/questions/63196320/installing-opencv-with-conda-and-spyder