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

gzip_str.py

import gzip
import io

def gzip_str(string_):
    out = io.BytesIO()

    with gzip.GzipFile(fileobj=out, mode='w') as fo:
        fo.write(string_.encode())

    bytes_obj = out.getvalue()
    return bytes_obj

def gunzip_bytes_obj(bytes_obj):
    in_ = io.BytesIO()
    in_.write(bytes_obj)
    in_.seek(0)
    with gzip.GzipFile(fileobj=in_, mode='rb') as fo:
        gunzipped_bytes_obj = fo.read()

    return gunzipped_bytes_obj.decode()
    
    
string_ = 'hello there!'

gzipped_bytes = gzip_str(string_)

original_string = gunzip_bytes_obj(gzipped_bytes)

assert string_ == original_string