Python3.x 需要使用regex匹配字符串的帮助，直到最后一次出现开闭括号，开闭括号中的值是可选的

下面我有几个示例字符串，使用正则表达式，我必须得到它的一部分，直到最后一次出现开闭括号，开闭括号中有可选值.

START OF THE SHOW with some gibberish characters (I) also lots of non-sense things (II) with boring end ()END

START OF THE SHOW with some gibberish characters () also lots of non-sense things () with boring end ()END

START OF THE SHOW with some gibberish characters (I) also lots of non-sense things (II) with boring end (III)END

START OF THE SHOW with some gibberish characters (1) also lots of non-sense things (2) with boring end (3)END

START OF THE SHOW with some gibberish characters (111) also lots of non-sense things (222) with boring end (333)END

我正在寻找的结果:

START OF THE SHOW with some gibberish characters (I) also lots of non-sense things (II) with boring end 

START OF THE SHOW with some gibberish characters () also lots of non-sense things () with boring end 

START OF THE SHOW with some gibberish characters (I) also lots of non-sense things (II) with boring end 

START OF THE SHOW with some gibberish characters (1) also lots of non-sense things (2) with boring end 

START OF THE SHOW with some gibberish characters (111) also lots of non-sense things (222) with boring end 

首先，我试着像这样使用non-capture group的概念，但我只得到匹配，直到开闭括号的第一个匹配.regexnon-capture group

^(.*?)(?:\(.*\))END$

但我从所有字符串中得到的输出只有这么多:

START OF THE SHOW with some gibberish characters 

然后我试着用negative lookahead和non-capture group，regexnegative lookahead

^(.*?)(?:\(.*\))END$

但我得到了匹配，包括最后出现的开闭括号.

START OF THE SHOW with some gibberish characters (I) also lots of non-sense things (II) with boring end ()

START OF THE SHOW with some gibberish characters () also lots of non-sense things () with boring end ()

START OF THE SHOW with some gibberish characters (I) also lots of non-sense things (II) with boring end (III)

START OF THE SHOW with some gibberish characters (1) also lots of non-sense things (2) with boring end (3)

START OF THE SHOW with some gibberish characters (111) also lots of non-sense things (222) with boring end (333)

我很确定我错过了一些小东西，但我不能自己弄清楚.

我很高兴有人能指出这一点.