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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def pair_tree_creator(meta_id):
 """Splits string into a pairtree path."""

    chunks = []
    for x in range(0, len(meta_id)):
        if x % 2:
            continue
        if (len(meta_id) - 1) == x:
            chunk = meta_id[x]
        else:
            chunk = meta_id[x: x + 2]
        chunks.append(chunk)
    return os.sep + os.sep.join(chunks) + os.sep