python3.x - python多版本共存时，默认easy_install,yum install都安装python2的库了，怎么解决这个问题？

Question

希望能安装python3的库，但是python2 link 到了/usr/bin/python,python3 link 到了/usr/bin/python3

Answer 1

http://www.nowamagic.net/academy/detail/1330228
python virtualenv

Answer 2

Please use pip3

Answer 3

If you need to coexist with multiple versions of Python, it is recommended to use pyenv https://github.com/yyuu/pyenv

Or run your command with absolute path

~/.pyenv/versions/2.6.9/bin/pip install tornado

This code installs tornado into the python directory of version 2.6.9

Answer 4

Use absolute paths

Answer 5

For multi-version coexistence, you can use virtualenv to create a virtual running environment and install the python3 library in the virtual environment.

Answer 6

All python scripts are run through virtualenv. Develop the habit of one project and one environment

Answer 7

If you are in a Linux environment, you can use pyenv to switch versions. You can refer to this article to try:
Python multi-version coexistence tool-Configuration of Pyenv and Anaconda scientific computing environment