Demo of how to gzip and gunzip a string in Python 3

gzip_str.py

"""How to gzip a string.

This works for Python 3.2.  For 3.1-, look at the original gist (under "Revisions")
"""
import gzip

def gzip_str(string_: str) -> bytes:
    return gzip.compress(string_.encode())


def gunzip_bytes_obj(bytes_obj: bytes) -> str:
    return gzip.decompress(bytes_obj).decode()


string_ = 'hello there!'

gzipped_bytes = gzip_str(string_)

original_string = gunzip_bytes_obj(gzipped_bytes)

assert string_ == original_string

gzip.compress() exists too since 3.2. This whole gist is now unnecessary, except for 3.0 and 3.1. (Except that gzip.decompress() doesn't exist in 3.0 and 3.1 either so the first commit of this gist is needed there.)

Great point @jack980517, I've updated it to reflect that.