Flatten nested Python sequence object.

flatten.py

from collections.abc import Sequence

def flatten(x):
    """Flatten given parameter recursively."""
    if isinstance(x, Sequence):
        for v in x:
            yield from flatten(v)
    else:
        yield x
        
if __name__ == '__main__':
    data = [1,2,[[3,4],5,[2,[3,4,5]]],[6,7],100,]
    print(list(flatten(data)))