仅在字符串末尾删除子字符串

Question

我有一串琴弦，其中一些琴弦' rec'。我只想删除最后四个字符。

换句话说，我有

somestring = 'this is some string rec'

我希望它成为

somestring = 'this is some string'

Python处理此问题的方法是什么？

Answer 1

def rchop(s, suffix):
    if suffix and s.endswith(suffix):
        return s[:-len(suffix)]
    return s

somestring = 'this is some string rec'
rchop(somestring, ' rec')  # returns 'this is some string'