different compression sizes

compression.py

# pre-requistes:
# pip install brotli       ; from https://github.com/google/brotli/tree/master/python
# pip install zstandard    ; from https://github.com/indygreg/python-zstandard
# pip install python-lzo   ; from https://github.com/jd-boyd/python-lzo
# zlib is in the python stdlib

import json
import zlib
import brotli
import zstandard
import lzo

original_session = json.dumps({"key": "value"}) * 4000  # this creates a session that is 64KB.
zlib_compressed_session = zlib.compress(original_session, 9)

cctx_normal  = zstandard.ZstdCompressor(level=22)
zstandard_compressed_session =  cctx_normal.compress(original_session)

lzo_compressed_session = lzo.compress(original_session)

brotli_compressed_session = brotli.compress(original_session, quality=11)

print "original_session size:", len(original_session)
print "zlib_compressed_session size:", len(zlib_compressed_session)
print "lzo_compressed_session size:", len(lzo_compressed_session)
print "zstandard_compressed_session size:", len(zstandard_compressed_session)
print "brotli_compressed_session size:", len(brotli_compressed_session)```

# Results:
`original_session size: 64000`
`zlib_compressed_session size: 166`
`lzo_compressed_session size: 342`
`zstandard_compressed_session size: 35`
`brotli_compressed_session size: 34`

original_session = json.dumps({"key": "value"}) * 4000 

this creates a session that lends itself very well for compression(because it contains a lot of repeated data), so we should repeat this experiment with session data that has more random data in it.