如何在 mac 上将模块安装到 python 2.7

Question

I tried to install these two modules

pip install opencv-python==3.4.2.16
pip install opencv-contrib-python==3.4.2.16

Before install, I switched from python 3 to python 2.7 in the VS code. because I want to install these two modules to python 2.7 and run with python 2.7.

I check pip freeze , But 2 modules is not there.

I check pip version, output looks like this

pip --version
pip 19.2.2 from /Users/donperera/Library/Python/3.7/lib/python/site-packages/pip (python 3.7)

How to install these 2 modules on to python 2.7 and run the project with python 2.7?

Answer 1

Vscode doesn't effect pip because it is a command line app.

First like the comment says, type python2 -m ensurepip If this doesn't work see https://docs.python.org/2.7/library/ensurepip.html

Then This is because the default python on your machine is 3.7. Try typing in the terminal python2 -m pip install <module or package >