py-versions

#!/bin/bash
# List available Python versions (in `$PATH` and `$HOME/opt/bin`).
# Usage: py-versions [MODE]
# Modes:
#   Default: Table of real versions and executables.
#   exec: List all executables.
#   latest: Latest version available.
#   latest-exec: Executable of latest version available.
#   raw: List all real versions.
#   xy: List "major.minor" version of all executables.


. `dirname ${BASH_SOURCE[0]}`/_py-utils


case "$1" in
  "exec")
    for py_version in `pyAvailableVersions`; do
      echo `pyWhichExec $py_version`
    done
    ;;

  "latest")
    pyLatestAvailableVersion
    ;;

  "latest-exec")
    pyLatestAvailableExec
    ;;

  "raw")
    for py_version in `pyAvailableVersions`; do
      py_exec=`pyWhichExec $py_version`
      echo `pyRealVersion $py_exec`
    done
    ;;

  "xy")
    pyAvailableVersions
    ;;

  *)
    output=""
    for py_version in `pyAvailableVersions`; do
      py_exec=`pyWhichExec $py_version`
      output="$output\n`pyRealVersion $py_exec`:$py_exec"
    done
    echo -e $output | column -t -s ":"
    ;;
esac