Delete multiple redis keys. Safe to run in production

redis_delete_prefix.py

# -*- coding: utf-8 -*-

from __future__ import print_function

import os
import sys
import itertools

from redis import StrictRedis


redis_url = os.environ.get('REDIS_URL')
assert redis_url, u'You must specify the REDIS_URL environment variable'
client = StrictRedis.from_url(redis_url)

key_matches = sys.argv[1:]
assert len(key_matches) > 0, u'You must specify at least one key match to delete'
print(u'Will delete key matching: %s' % key_matches)

for key_match in key_matches:
    it = client.scan_iter(match=key_match, count=1000)
    while True:
        keys = list(itertools.islice(it, 1000))
        if not keys:
            print('\ndone: %s' % key_match)
            break
        client.delete(*keys)
        sys.stdout.write('.')
        sys.stdout.flush()