fix: use python3 for all python invocations (#10832)

plugins/git-prompt/README.md

@@ -13,7 +13,7 @@ See the [original repository](https://github.com/olivierverdier/zsh-git-prompt).
 
 ## Requirements
 
-This plugin uses `python`, so your host needs to have it installed
+This plugin uses `python3`, so your host needs to have it installed.
 
 ## Examples
 

plugins/git-prompt/git-prompt.plugin.zsh

@@ -36,7 +36,7 @@ function update_current_git_vars() {
     unset __CURRENT_GIT_STATUS
 
     local gitstatus="$__GIT_PROMPT_DIR/gitstatus.py"
-    _GIT_STATUS=$(python ${gitstatus} 2>/dev/null)
+    _GIT_STATUS=$(python3 ${gitstatus} 2>/dev/null)
      __CURRENT_GIT_STATUS=("${(@s: :)_GIT_STATUS}")
     GIT_BRANCH=$__CURRENT_GIT_STATUS[1]
     GIT_AHEAD=$__CURRENT_GIT_STATUS[2]

plugins/git-prompt/gitstatus.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 from __future__ import print_function
 
 import os