import os def find_holes(file): with open(file, "rb") as fd: fileno = fd.fileno() size = os.stat(fileno).st_size pos = 0 holes = [] while True: hole_start = os.lseek(fileno, pos, os.SEEK_HOLE) data_start = os.lseek(fileno, pos, os.SEEK_DATA) if hole_start == size: break holes.append((hole_start, data_start)) if pos == data_start: break pos = data_start return holes
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