Python pls

Create a function that recursively deletes an element of the tuple. If key not in tuple, it pop up KeyError

def re_tup(tup, holder):

#Program should Not use for loop, use a recursive function

example output

print(re_tup((('alpha', 4), ('beta', 1), ('chalie', 3), ('delta', 2)), 'delta'))

will output = (('alpha', 4), ('beta', 1), ('chalie', 3))

print(re_tup((('alpha', 4), ('beta', 1), ('chalie', 3), ('delta', 2)), 'echo'))

will output = KeyError