installed python doesn't switch active python version nor persist across zsh shell sessions for mac(mountain lion) pyenv homebrew zsh

[mazz]

after running

brew update
brew install pyenv

switching python with pyenv has no effect:

[michael@varga (Sun Dec 15 19:18:55) ~]% pyenv install 3.3.2
Downloading Python-3.3.2.tgz...
-> http://yyuu.github.io/pythons/0a2ea57f6184baf45b150aee53c0c8da
Installing Python-3.3.2...
Installed Python-3.3.2 to /Users/michael/.pyenv/versions/3.3.2

Downloading setuptools-2.0.tar.gz...
-> https://pypi.python.org/packages/source/s/setuptools/setuptools-2.0.tar.gz
Installing setuptools-2.0...
Installed setuptools-2.0 to /Users/michael/.pyenv/versions/3.3.2

Downloading pip-1.4.1.tar.gz...
-> https://pypi.python.org/packages/source/p/pip/pip-1.4.1.tar.gz
Installing pip-1.4.1...
Installed pip-1.4.1 to /Users/michael/.pyenv/versions/3.3.2

[michael@varga (Sun Dec 15 19:25:57) ~]% pyenv versions
* system (set by /Users/michael/.pyenv/version)
  3.3.2
[michael@varga (Sun Dec 15 19:26:09) ~]% pyenv global 3.3.2
[michael@varga (Sun Dec 15 19:26:41) ~]% pyenv versions    
  system
* 3.3.2 (set by /Users/michael/.pyenv/version)
[michael@varga (Sun Dec 15 19:26:43) ~]% python --version
Python 2.7.2

opening a new terminal shell:

/usr/local/Cellar/pyenv/20131116/libexec/../completions/pyenv.bash:16: command not found: complete

I've also changed .zshenv to

export PYENV_ROOT="$HOME/.pyenv"
eval "$(pyenv init -)"

[yyuu]

You might have wrong value in $SHELL environment variable. I am using pyenv with zsh on OS X 10.9 without any problems.

/usr/local/Cellar/pyenv/20131116/libexec/../completions/pyenv.bash:16: command not found: complete

https://github.com/yyuu/pyenv/blob/76bf3ee0d65248fb6ffcbc57945d790f7e2fd977/libexec/pyenv-init#L104

[mazz]

Thank you, this helped a lot.

I'm my .zshrc:

export SHELL=/bin/zsh
if which pyenv > /dev/null; then eval "$(pyenv init -)"; fi

when I do:

[hannam@mhanna (Mon Dec 16 13:59:17) ~]% pyenv versions
* system (set by /Users/hannam/.pyenv/version)
  3.3.2
[hannam@mhanna (Mon Dec 16 13:59:23) ~]% pyenv global 3.3.2
[hannam@mhanna (Mon Dec 16 13:59:37) ~]% pyenv versions    
  system
* 3.3.2 (set by /Users/hannam/.pyenv/version)
[hannam@mhanna (Mon Dec 16 13:59:42) ~]% python
Your PYTHONPATH points to a site-packages dir for Python 2.x but you are running Python 3.x!
     PYTHONPATH is currently: "/usr/local/lib/python2.7/site-packages:"
     You should `unset PYTHONPATH` to fix this.

Do I only need to do unset PYTHONPATH to use 3.3.2? Or are there more steps?

[yyuu]

I would not recommend you to use PYTHONPATH or PYTHONHOME with pyenv.