tokenize a string keeping delimiters in Python

Question

Is there any equivalent to str.split in Python that also returns the delimiters?

I need to preserve the whitespace layout for my output after processing som

Answer 1

Thanks guys for pointing for the re module, I'm still trying to decide between that and using my own function that returns a sequence...

def split_keep_delimiters(s, delims="\t\n\r "):
    delim_group = s[0] in delims
    start = 0
    for index, char in enumerate(s):
        if delim_group != (char in delims):
            delim_group ^= True
            yield s[start:index]
            start = index
    yield s[start:index+1]

If I had time I'd benchmark them xD