我正在将Python项目从2.7.x切换到3.7.x,并且在Windows 10上运行,并且遇到了FakeRedis的问题。我有一个RedisCache类,看起来像这样:
class RedisCache(object):
def __init__(self, connection_info, is_testing):
if is_testing:
import fakeredis
self.conn = fakeredis.FakeStrictRedis()
else:
self.conn = redis.StrictRedis(host=connection_info['host'], port=connection_info['port'], db=0)
def get(self, key_name, default=None):
return self.conn.get(key_name)
在运行测试时,将连接创建为FakeStrictRedis的实例,然后在调用“获取”时,代码最终调用“ redis.SelectSelector.check_is_ready_for_command”,然后调用“ select.select”,并传入一个实例。 'fakeredis._server.FakeSocket'。
def check_is_ready_for_command(self, timeout):
"""
Return True if the socket is ready to send a command,
otherwise False.
"""
r, w, e = select.select([self.sock], [self.sock], [self.sock],
timeout)
return bool(w and not r and not e)
然后在对“ select.select”的调用中得到以下调用堆栈:
\core\rediscache.py line 41, in get s = self.conn.get(key_name)
\env\lib\site-packages\redis\client.py line 1264, in get return self.execute_command(\'GET\', name)
\env\lib\site-packages\redis\client.py line 772, in execute_command connection = pool.get_connection(command_name, **options)
\env\lib\site-packages\redis\connection.py line 999, in get_connection if not connection.is_ready_for_command():
\env\lib\site-packages\redis\connection.py line 632, in is_ready_for_command return self._selector.is_ready_for_command()
\env\lib\site-packages\redis\selector.py line 43, in is_ready_for_command return self.check_is_ready_for_command(timeout)
\env\lib\site-packages\redis\selector.py line 104, in check_is_ready_for_command timeout)
TypeError: argument must be an int, or have a fileno() method.
问题在于FakeSocket没有fileno()方法,因此尚不清楚它应该如何工作。
感谢您的帮助。
答案 0 :(得分:1)
经过两天的自然调查,我提出了问题,然后立即找到答案。 fakeredis与redis版本3.2不兼容,降级为3.0.1可以解决此问题。