def score_def(x, y, c_x, c_y): x = bytes(x, encoding='utf8') y = bytes(y, encoding='utf8') cat_xy = x + y c_xy = len(deflate.gzip_compress(cat_xy)) cat_yx = y + x c_yx = len(deflate.gzip_compress(cat_yx)) return (min(c_xy, c_yx) - min(c_x, c_y))/max(c_x, c_y)
def gzip_compress(content, compresslevel=None):
if compresslevel is None:
compresslevel = 9
if deflate:
return deflate.gzip_compress(content, compresslevel)
stringio = BytesIO()
gzip_obj = gzip.GzipFile(mode='wb', fileobj=stringio, compresslevel=compresslevel)
gzip_obj.write(content)
gzip_obj.close()
return stringio.getvalue()
def gzip_compress(content, compresslevel=None):
if compresslevel is None:
compresslevel = 9
return deflate.gzip_compress(content, compresslevel)
__all__ = [
'deflate',
'zlib',
'no_compress',
'CompressionAlgorithm'
]
class CompressionAlgorithm:
def __init__(self, compress, decompress, label):
self.compress = compress
self.decompress = decompress
self.label = label
def __str__(self):
return self.label
deflate = CompressionAlgorithm(lambda data_bytes: de.gzip_compress(data_bytes, 12),
de.gzip_decompress,
'deflate')
zlib = CompressionAlgorithm(lambda data_bytes: zl.compress(data_bytes, 9),
zl.decompress,
'zlib')
no_compress = CompressionAlgorithm(lambda data_bytes: data_bytes,
lambda data_bytes: data_bytes,
'no compression')