def combineDicts(master,new):

    for (keysequence, valuesequence) in flatten(new):
        try:
            master[keysequence] = map(sum,zip(master[keysequence],valuesequence))
        except KeyError:
            master[keysequence] = valuesequence
    return dict1
Function replaces the current instructions listed in the rebase
dataset/ETHPy150Open Bookworm-project/BookwormDB/bookwormDB/MetaWorm.py/combineDicts--crossover with--dataset/ETHPy150Open openstack/git-upstream/git_upstream/rebase_editor.py/rebase_replace_insn