From cccd8d365561e27a7bb73de3da7b888c22e1fb29 Mon Sep 17 00:00:00 2001
From: Michka Popoff <michkapopoff@gmail.com>
Date: Tue, 10 Mar 2020 07:10:40 +0100
Subject: [PATCH] rewrite_python_shebang: make version part optional

We forgot about the simplest case:
/usr/bin/env python
---
 Library/Homebrew/language/python.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/language/python.rb b/Library/Homebrew/language/python.rb
index 1de839163772a..4491f8d41ffb6 100644
--- a/Library/Homebrew/language/python.rb
+++ b/Library/Homebrew/language/python.rb
@@ -88,7 +88,7 @@ def self.setup_install_args(prefix)
     end
 
     def self.rewrite_python_shebang(python_path)
-      regex = %r{^#! ?/usr/bin/(env )?python([23](\.\d{1,2})?)$}
+      regex = %r{^#! ?/usr/bin/(env )?python([23](\.\d{1,2})?)?$}
       maximum_regex_length = 28 # the length of "#! /usr/bin/env pythonx.yyy$"
       Pathname(".").find do |f|
         next unless f.file?