notes on learning redis

I'm running redis in a docker container and connecting to it from Python using
https://github.com/andymccurdy/redis-py

>>> from redis import Redis

I initially wasn't able to connect until I found this
https://stackoverflow.com/a/57681086/1164295

>>> rd.ping()
True
>>> rd = Redis(host='docker.for.mac.localhost', port=6379)

Then I used https://realpython.com/python-redis/#ten-or-so-minutes-to-redis

What keys exist?

>>> rd.keys()
[b'hits']

Look for a key that doesn't exist:

>>> print(rd.get('mykey'))
None
>>> rd.get('mykey')
>>>

Better method for looking for keys:

>>> rd.exists('mykey')

0

>>> rd.exists('hits')

1