def dropwhile(pred, seq=EMPTY):
    """Skips the start of the sequence passing pred (or just truthy),
       then iterates over the rest."""
    if seq is EMPTY:
        pred, seq = bool, pred
    else:
        pred = make_pred(pred)
    return _dropwhile(pred, seq)
Skips the start of the sequence passing pred (or just truthy),
       then iterates over the rest.
funcy/seqs.py