python - Split string at nth occurrence of a given character

Question

Is there a Python-way to split a string after the nth occurrence of a given delimiter?

Given a string:

'20_231_myString_234'

It should be split into (with the delimiter being '_', after its second occurrence):

['20_231', 'myString_234']

Or is the only way to accomplish this to count, split and join?

Answer 1

>>> n = 2
>>> groups = text.split('_')
>>> '_'.join(groups[:n]), '_'.join(groups[n:])
('20_231', 'myString_234')

Seems like this is the most readable way, the alternative is regex)