Cannot switch Python with pyenv

Question

I would like to use pyenv to switch python2 and python3.

I successfully downloaded python2 and python3 and pyenv with following codes.

brew install pyenv

brew install pyenv-virtualenv

pyenv install 2.7.10

pyenv install 3.5.0

However, I cannot switch from python2 to python3..

Soma-Suzuki:~ Soma$ python --version
Python 2.7.10
Soma-Suzuki:~ Soma$ pyenv global
2.7.10
Soma-Suzuki:~ Soma$ pyenv versions
  system
* 2.7.10 (set by /Users/Soma/.pyenv/version)
  3.5.0
Soma-Suzuki:~ Soma$ pyenv global 3.5.0
Soma-Suzuki:~ Soma$ pyenv global
3.5.0
Soma-Suzuki:~ Soma$ pyenv versions
  system
  2.7.10
* 3.5.0 (set by /Users/Soma/.pyenv/version)
Soma-Suzuki:~ Soma$ python --version
Python 2.7.10
Soma-Suzuki:~ Soma$ 

I do not understand why this happens.

For your information. My python is in this directory.

Soma-Suzuki:~ Soma$ which python
/usr/bin/python

Thank you in advance.

Answer 1

Try this: eval "$(pyenv init -)"

Example:

$ python -V
Python 2.7.9
mac:~ $ eval "$(pyenv init -)"
mac:~ $ python -V
Python 3.5.0

More info: https://github.com/pyenv/pyenv