Greenstalk supports Python 3.5 and later. It's available on the Python Package Index and can be installed by running:
$ pip install greenstalk>>> import greenstalk
>>> c = greenstalk.Client(host='127.0.0.1', port=11300)
>>> c.put('hello')
1
>>> jid, body = c.reserve()
>>> jid
1
>>> body
'hello'
>>> c.delete(jid)
>>> c.close()