Merge pull request #775 from return42/redis-4.1.1

httpx-socks[asyncio]==0.7.2

langdetect==1.0.9

setproctitle==1.2.2

redis==4.1.1

"""

import logging

import redis

from searx import get_setting

logger = logging.getLogger('searx.shared.redis')

def client():

    global _client  # pylint: disable=global-statement

    import redis  # pylint: disable=import-error, import-outside-toplevel

    if _client is None:

        # not thread safe: in the worst case scenario, two or more clients are

        # initialized only one is kept, the others are garbage collected.

def init():

    import redis  # pylint: disable=import-error, import-outside-toplevel

    try:

        c = client()

        logger.info("connected redis DB --> %s", c.acl_whoami())