I would like to know if there is any built in function in python to break the string in to 2 parts, based on the last occurrence of a separator.
我想知道在python中是否有任何内置函数将字符串分成两部分，基于最后一次出现的分隔符。
for eg: consider the string "a b c,d,e,f" , after the split over separator ",", i want the output as
例如：考虑字符串“a b c，d，e，f”，在拆分分隔符“，”之后，我希望输出为
"a b c,d,e" and "f".
“a b c，d，e”和“f”。
I know how to manipulate the string to get the desired output, but i want to know if there is any in built function in python.
我知道如何操作字符串来获得所需的输出，但我想知道python中是否有任何内置函数。
3 个解决方案
#1
95
Use rpartition(s). It does exactly that.
使用rpartition（s）。它确实如此。
You can also use rsplit(s, 1).
你也可以使用rsplit（s，1）。
#2
61
>>> "a b c,d,e,f".rsplit(',',1)
['a b c,d,e', 'f']
#3
40
You can split a string by the last occurrence of a separator with rsplit:
您可以使用rsplit在分隔符的最后一次出现时拆分字符串：
Returns a list of the words in the string, separated by the delimiter string (starting from right).
返回字符串中单词的列表，由分隔符字符串（从右开始）分隔。
To split by the last comma:
要按最后一个逗号分割：
>>> "a b c,d,e,f".rsplit(',', 1)
['a b c,d,e', 'f']
#1
95
Use rpartition(s). It does exactly that.
使用rpartition（s）。它确实如此。
You can also use rsplit(s, 1).
你也可以使用rsplit（s，1）。
#2
61
>>> "a b c,d,e,f".rsplit(',',1)
['a b c,d,e', 'f']
#3
40
You can split a string by the last occurrence of a separator with rsplit:
您可以使用rsplit在分隔符的最后一次出现时拆分字符串：
Returns a list of the words in the string, separated by the delimiter string (starting from right).
返回字符串中单词的列表，由分隔符字符串（从右开始）分隔。
To split by the last comma:
要按最后一个逗号分割：
>>> "a b c,d,e,f".rsplit(',', 1)
['a b c,d,e', 'f']