需要一个类似字节的对象,而不是'str' - 错误

Question

我有python-memcached(1.57)和django-celery(3.1.17),芹菜(3.1.20)和python 3.5.当我尝试实现http://docs.celeryproject.org/en/latest/tutorials/task-cookbook.html#ensuring-a-task-is-only-executed-one-at-a时,我总是得到以下错误-时间

Task tasks.live_task[a2ed1faf-0fce-4855-a206-40f2fbdae1a8] raised unexpected: TypeError("a bytes-like object is required, not 'str'",)
Traceback (most recent call last):
File "/app/current/venv/lib/python3.5/site-packages/celery/app/trace.py", line 240, in trace_task
R = retval = fun(*args, **kwargs)
File "/app/current/venv/lib/python3.5/site-packages/celery/app/trace.py", line 438, in __protected_call__
return self.run(*args, **kwargs)
File "/app/current/src/helps.py", line 62, in wrapper
if acquire():
File "/app/current/src/helps.py", line 57, in acquire
return cache.add(id, "true", time_out)
File "/app/current/venv/lib/python3.5/site-packages/django/core/cache/backends/memcached.py", line 80, in add
return self._cache.add(key, value, self.get_backend_timeout(timeout))
File "/app/current/venv/lib/python3.5/site-packages/memcache.py", line 633, in add
return self._set("add", key, val, time, min_compress_len, noreply)
File "/app/current/venv/lib/python3.5/site-packages/memcache.py", line 983, in _set
server, key = self._get_server(key)
File "/app/dashboard/current/venv/lib/python3.5/site-packages/memcache.py", line 413, in _get_server
serverhash = serverHashFunction(str(serverhash) + str(i))
File "/app/current/venv/lib/python3.5/site-packages/memcache.py", line 65, in cmemcache_hash
(((binascii.crc32(key) & 0xffffffff)
TypeError: a bytes-like object is required, not 'str'

Answer 1

python-memchached不支持python 3.5 如果您已经使用过python-memchached,以下命令将对您有所帮助.

pip uninstall python-memcached
pip install python3-memcached