split string in to 2 based on last occurrence of a separator

Question

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.

for eg: consider the

Answer 1

>>> "a b c,d,e,f".rsplit(',',1)
['a b c,d,e', 'f']

Answer 2

You can split a string by the last occurrence of a separator with rsplit:

Returns a list of the words in the string, separated by the delimiter string (starting from right).

To split by the last comma:

>>> "a b c,d,e,f".rsplit(',', 1)
['a b c,d,e', 'f']

Answer 3

Use rpartition(s). It does exactly that.

You can also use rsplit(s, 1).