[bflim.py] error when doing png -> bflim

[eternalKink]

Tried in latest python 2 and 3 versions.
python 2(7.18):

Traceback (most recent call last):
  File "bflim.py", line 836, in <module>
    bflim.load(args.create)
  File "bflim.py", line 273, in load
    for row in list(pixels):
  File "C:\Python27\lib\site-packages\png.py", line 1610, in iter_bytes_to_values
    for row in byte_rows:
  File "C:\Python27\lib\site-packages\png.py", line 1654, in iter_straight_byte_rows
    for some_bytes in byte_blocks:
  File "C:\Python27\lib\site-packages\png.py", line 2236, in decompress
    for data in data_blocks:
  File "C:\Python27\lib\site-packages\png.py", line 1874, in iteridat
    raise ChunkError(e.args[0])
png.ChunkError: ChunkError: I/O operation on closed file

python3(.11.3):

Traceback (most recent call last):
  File "D:\romhack stuff\tools\3dstools-master\bflim.py", line 836, in <module>
    bflim.load(args.create)
  File "D:\romhack stuff\tools\3dstools-master\bflim.py", line 273, in load
    for row in list(pixels):
               ^^^^^^^^^^^^
  File "C:\Python3\Lib\site-packages\png.py", line 1545, in _iter_bytes_to_values
    for row in byte_rows:
  File "C:\Python3\Lib\site-packages\png.py", line 1587, in _iter_straight_packed
    for some_bytes in byte_blocks:
  File "C:\Python3\Lib\site-packages\png.py", line 2194, in decompress
    for data in data_blocks:
  File "C:\Python3\Lib\site-packages\png.py", line 1826, in iteridat
    type, data = self.chunk(lenient=lenient)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python3\Lib\site-packages\png.py", line 1399, in chunk
    data = self.file.read(length)
           ^^^^^^^^^^^^^^^^^^^^^^
ValueError: read of closed file