virtualenv name not show in zsh prompt

Question

Recently, I give a try on oh my zsh, everything looks good till I try virtualevn and virtualenvwrapper. When I activate a virtualenv (e.g test), on normal bash, I will see the virtualenv name like:

(test)abc@abc:

But when I switched to zsh, I cannot see virtualenv name. Even though, I alr add virtualenv and virtualenvwrapper in plugins of oh my zsh. I also checked the activate file of my virtualenv, it contains:

f [ -z "${VIRTUAL_ENV_DISABLE_PROMPT-}" ] ; then        
    _OLD_VIRTUAL_PS1="$PS1"
    if [ "x" != x ] ; then
        PS1="$PS1"
    else
        PS1="(`basename \"$VIRTUAL_ENV\"`) $PS1"
    fi
        export PS1
fi

Is it because the comparision ["x" != x] return true?

Updated: I tried to echo $PS1 in activate file, and got this:

(test) %{$fg[magenta]%}%n%{$reset_color%}%{$fg[cyan]%}@%{$reset_color%}%{$fg[yellow]%}%m%{$reset_color%}%{$fg[red]%}:%{$reset_color%}%{$fg[cyan]%}%0~%{$reset_color%}%{$fg[red]%}|%{$reset_color%}%{$fg[cyan]%}⇒%{$reset_color%}

It seems the $PS1 is correct, but when I echo $PS1 in the terminal, the (test) is gone. It seems the $PS1 is override by something else!

Answer 1

Do this in ~/.zshrc:

plugins=(virtualenv)

POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(status virtualenv)

Caveats:

1 -- add that plugin in addition to other plugins you have.

2 -- I'm using the POWERLEVEL9K theme. Maybe you theme