install.fairie/docs/scripts/after/run_onchange_after_06-bin-symlink.sh.tmpl.md
2023-11-05 01:46:18 +00:00

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---
title: Python Symlink
description: Symlinks `python` to `python3` when Python 2.7 is not installed
sidebar_label: 06 Python Symlink
slug: /scripts/after/run_onchange_after_06-bin-symlink.sh.tmpl
githubLocation: https://github.com/megabyte-labs/install.doctor/blob/master/home/.chezmoiscripts/universal/run_onchange_after_06-bin-symlink.sh.tmpl
scriptLocation: https://github.com/megabyte-labs/install.doctor/raw/master/home/.chezmoiscripts/universal/run_onchange_after_06-bin-symlink.sh.tmpl
repoLocation: home/.chezmoiscripts/universal/run_onchange_after_06-bin-symlink.sh.tmpl
---
# Python Symlink
Symlinks `python` to `python3` when Python 2.7 is not installed
## Overview
This script checks if `python3` is available and if `python` is not available. If both are true, then the script
symlinks `python` to `python3` so that the `python` command uses `python3`.
This is useful if you do not want to install Python 2.7 and would like Python 3 to be used in all scenarios where Python is
invoked with the `python` command.
## Source Code
```
{{- if (ne .host.distro.family "windows") -}}
#!/usr/bin/env bash
# @file Python Symlink
# @brief Symlinks `python` to `python3` when Python 2.7 is not installed
# @description
# This script checks if `python3` is available and if `python` is not available. If both are true, then the script
# symlinks `python` to `python3` so that the `python` command uses `python3`.
#
# This is useful if you do not want to install Python 2.7 and would like Python 3 to be used in all scenarios where Python is
# invoked with the `python` command.
{{ includeTemplate "universal/profile" }}
{{ includeTemplate "universal/logg" }}
### Symlink python3 to python if it is unavailable
if ! command -v python > /dev/null && command -v python3 > /dev/null; then
logg info 'Symlinking python3 to python since the latter is unavailable'
sudo ln -s "$(which python3)" /usr/local/bin/python
fi
{{ end -}}
```