IDL sucks ass

gistfile1.py

import struct

def chunk(l, n):
    if n < 1:
        n = 1
    return [l[i:i + n] for i in range(0, len(l), n)]


def _read_binary_line_list(cls, filename):

    with open(filename, "rb") as fp:
        # Skip the header (this is also length 15200)
        fp.seek(0x3b60)
        contents = fp.read()

    size = 15200
    return sum([_read_binary_structure(contents[i*size:]) \
        for i in xrange(len(contents)/size)], [])
    

def _read_binary_structure(cls, contents):

    data_format = "<200d200d200f200f200f200f200f200f200f200f200f200l"
    data = struct.unpack_from(data_format, contents)

    # bytes
    offset = struct.calcsize(data_format)
    sizes = (5, 3, 3, 3, 3)
    byte_format = "<1000s600s600s600s600s"
    str_data = [chunk(d, s) for d, s in \
        zip(struct.unpack_from(byte_format, contents[offset:]), sizes)]

    offset += struct.calcsize(byte_format)
    element_fmt = "<200b200b200b"
    element_data = struct.unpack_from(element_fmt, contents[offset:])

    # Join back together
    records = []
    for i in xrange(200):
        record = list(data[i::200])
        record.extend([each[i] for each in str_data])
        record.extend(element_data[i::200])

        records.append(tuple(record))

    return records