test.py

 #!/usr/bin/python
 # -*- coding: utf-8 -*-

from __future__ import print_function
from __future__ import unicode_literals
from __future__ import division
from __future__ import absolute_import
from builtins import str
from future import standard_library
standard_library.install_aliases()
import json
import lzstring
import pprint


if __name__ == '__main__':
    x = lzstring.LZString()

    s = 'Žluťoučký kůň úpěl ďábelské ódy!'

    # generated with original js lib
    jsLzStringBase64 = 'r6ABsK6KaAD2aLCADWBfgBPQ9oCAlAZAvgDobEARlB4QAEOAjAUxAGd4BL5AZ4BMBPAQiAAA'
    jsLzStringBase64Json = 'N4Ig5gNg9gzjCGAnAniAXKALgS0xApuiPgB7wC2ADgQASSwIogA0IA4tHACLYBu6WXASIBlFu04wAMthiYBEhgFEAdpiYYQASS6i2AWSniRURJgCCMPYfEcGAFXyJyozPBUATJB5pt8Kp3gIbAAvfB99JABrAFdKGil3MBj4MEJWcwBjRCgVZBc0EBEDIwyAIzLEfH5CrREAeRoADiaAdgBONABGdqaANltJLnwAMwVKJHgicxpyfDcAWnJouJoIJJS05hoYmHCaTCgabPx4THxZlfj1lWTU/BgaGBjMgAsaeEeuKEyAISgoFEAHSDBgifD4cwQGBQdAAbXYNlYAA0bABdAC+rDscHBhEKy0QsUoIAxZLJQAAA=='

    print('String for encode: ' + s)
    print()

    print('Compress to base64:')
    base2 = x.compressToBase64(s)
    print('result:    ' + base2)
    print('result js: ' + jsLzStringBase64)
    print('equals:    ' + str(base2 == jsLzStringBase64))

    print()

    print('Decompress from base64:')
    print('result:         ' + x.decompressFromBase64(base2))
    print('result from js: ' + x.decompressFromBase64(jsLzStringBase64))

    print()

    jsonString = '{"glossary":{"title":"example glossary","GlossDiv":{"title":"S","GlossList":{"GlossEntry":{"ID":"SGML","SortAs":"SGML","GlossTerm":"Standard Generalized Markup Language","Acronym":"SGML","Abbrev":"ISO 8879:1986","GlossDef":{"para":"A meta-markup language, used to create markup languages such as DocBook.","GlossSeeAlso":["GML","XML"]},"GlossSee":"markup"}}}}}'

    print('Compress json to base64:')
    jresult = x.compressToBase64(jsonString)
    print('result:    ' + jresult)
    print()
    print('result js: ' + jsLzStringBase64Json)
    print()
    print('equals: ' + str(jresult == jsLzStringBase64Json))

    print()

    print('Decompress json from base64:')
    pprint.pprint(json.loads(x.decompressFromBase64(jsLzStringBase64Json)))