Decompress ".jsonlz4" files and print their contents

dejsonlz4.py

# Uncompress ".jsonlz4" files. See also:
# https://github.com/avih/dejsonlz4
# Requires lz4:
#  $ pip install lz4

import lz4.block
import sys

with open(sys.argv[1], "rb") as fin:
    content = fin.read()
    # Strip the non-standard Mozilla file header.
    # The first 8 bytes should be [109, 111, 122, 76, 122, 52, 48, 0]
    output_data = lz4.block.decompress(content[8:])
    print(output_data)
    # TODO: uncompress the file normally if the header does not match.