test.py

gistfile1.pytb

======================================================================
ERROR: test_save (__main__.CreationTest)
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Traceback (most recent call last):
  File "tests/creation_test.py", line 35, in test_save
    self.nbt.save('__test__.nbt')
  File "/home/tyler/Projects/PyNBT/pynbt/nbt.py", line 307, in save
    g = gzip.GzipFile(fileobj=f, mode='wb') if compressed else f
  File "/usr/lib/python3.2/gzip.py", line 201, in __init__
    self._write_gzip_header()
  File "/usr/lib/python3.2/gzip.py", line 233, in _write_gzip_header
    self.fileobj.write(b'\037\213')             # magic header
io.UnsupportedOperation: write

test.py

f = io if hasattr(io, 'read') else open(io, 'rb')
g = gzip.GzipFile(fileobj=f, mode='wb') if compressed else f