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pyenv-version-alias

Pyenv plugin to add an alias to your global pyenv version and individual .python-version

This is useful when you use multiple versions and/or virtualenvs within a pyenv version, and you want to display a more readable string in tools that display your pyenv version.

For example, if you had your global version set as:

~/.pyenv/version

default3
default2
3.5.7
3.6.8

Most tools that display this would use pyenv version-name which would display default3:default2:3.5.7:3.6.8. Using pyenv version-alias would display global.

Alternatively, if you had a project like this:

~/myproject/.python-version

module_virtualenv1
module_virtualenv2
module_virtualenv3

Youl could do pyenv version-alias myproject, then any time you call pyenv version-alias it would return myproject

Installation

$ git clone https://github.com/aiguofer/pyenv-version-alias $(pyenv root)/plugins/pyenv-version-alias

Usage

To set a version alias (this will create a .python-version-alias file in the same dir as your .python-version):

$ pyenv version-alias <alias-name>

To fetch the current alias (this will return global for the global version):

$ pyenv version-alias

When using $PYENV_VERSION env var, you can't use the normal set method. However, you can create a $PYENV_VERSION_ALIAS env var with the alias you want.

Integrating it into your toolchain

For powerlevel9k, just add this to your ~/.zshrc (after loading the theme, since you're overriding the function):

prompt_pyenv() {
    local pyenv_version_name="$(pyenv version-alias)"
    if [[ "${pyenv_version_name}" != "global" || "${POWERLEVEL9K_PYENV_PROMPT_ALWAYS_SHOW}" == "true" ]]; then
        "$1_prompt_segment" "$0" "$2" "blue" "$DEFAULT_COLOR" "$pyenv_version_name" 'PYTHON_ICON'
    fi
}

For powerlevel10k it's slightly different:

prompt_pyenv() {
    local v=$(pyenv version-alias)
    if [[ "${v}" != "global" || "${POWERLEVEL9K_PYENV_PROMPT_ALWAYS_SHOW}" == "true" ]]; then
        "$1_prompt_segment" "$0" "$2" "blue" "$DEFAULT_COLOR" 'PYTHON_ICON' 0 '' "${v//\%/%%}"
    fi
}

For Emacs, you can use https://github.com/aiguofer/pyenv.el and enable aliases with

(setq pyenv-use-alias 't)

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Pyenv plugin to add an alias to your global pyenv version and individual .python-version

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