import zlib
s = zlib.compress(b'This is just a test string.')[:-1]

try:
	zlib.decompress(s)
except zlib.error as e:
	print('zlib.decompress raises this:', e)
else:
	print('zlib.decompress raises nothing.')

try:
	d = zlib.decompressobj()
	d.decompress(s)
	print('zlib.Decompress.unconsumed_tail =', d.unconsumed_tail)
	d.flush()
	del d
except zlib.error as e:
	print('zlib.Decompress raises this:', e)
else:
	print('zlib.Decompress raises nothing.')

print('decompress and Decompress should have raised identical exceptions.')