Python:如何通过特定版本2.4.9 pip安装opencv2? [英] Python: How to pip install opencv2 with specific version 2.4.9?

问题描述

我知道我可以pip install opencv-python来安装opencv3，但是opencv特定版本(例如2.4.9)是否有单独的命令或名称?

I know that I could pip install opencv-python which installs opencv3, but is there a separate command or name for opencv specific version such as 2.4.9?

如果没有，如何指定要安装的版本?

If not, how can I specify which version to install?

谢谢.

推荐答案

通过pip，您可以使用以下命令指定要安装的软件包版本:

Via pip you can specify the package version to install using the following:

pip install opencv-python==2.4.9

但是，该软件包似乎在 pypi 上不可用.

However, that package does not seem to be available on pypi.

检查可用版本的小技巧:

A little trick for checking available versions:

pip install opencv-python==

哪个返回:

Could not find a version that satisfies the requirement opencv-python== (from versions: 3.1.0.0, 3.1.0.1, 3.1.0.2, 3.1 .0.3, 3.1.0.5, 3.2.0.6, 3.2.0.7) No matching distribution found for opencv-python==

Could not find a version that satisfies the requirement opencv-python== (from versions: 3.1.0.0, 3.1.0.1, 3.1.0.2, 3.1 .0.3, 3.1.0.5, 3.2.0.6, 3.2.0.7) No matching distribution found for opencv-python==

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