Removing internal brackets from a string

[buran]

iterate over elements in the tuple and recursively flatten it

spam = (((2517.0, 2525.0), 2437.0), 2440.0)


def flatten(arg):
    flat_list = []
    for item in arg:
        if isinstance(item, (tuple, list)):
            flat_list.extend(flatten(item))
        else:
            flat_list.append(item)
    return tuple(flat_list)
print(flatten(spam))

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alternative is - to convert to str, remove all brackets and use ast.literal_eval to convert back to tuple

from ast import literal_eval
spam = (((2517.0, 2525.0), 2437.0), 2440.0)
spam = str(spam).replace('(', '').replace(')', '')
spam = literal_eval(spam)
print(spam)