Python 无法设置芹菜结果后端

我的第一个芹菜项目是这样的——我基本上遵循以下原则：

试图通过

backend='redis://'

设置结果后端会在调用

celery-A celery\u test worker--loglevel=info

时导致以下语法错误，这看起来像是celery中的错误：

[2019-01-21 12:58:59,457: CRITICAL/MainProcess] Unrecoverable error: SyntaxError('invalid syntax', ('/Users/cls/anaconda3/lib/python3.7/site-packages/celery/backends/redis.py', 22, 19, 'from . import async, base\n'))
Traceback (most recent call last):
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/kombu/utils/objects.py", line 42, in __get__
    return obj.__dict__[self.__name__]
KeyError: 'backend'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/worker/worker.py", line 205, in start
    self.blueprint.start(self)
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/bootsteps.py", line 115, in start
    self.on_start()
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/apps/worker.py", line 139, in on_start
    self.emit_banner()
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/apps/worker.py", line 154, in emit_banner
    ' \n', self.startup_info(artlines=not use_image))),
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/apps/worker.py", line 217, in startup_info
    results=self.app.backend.as_uri(),
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/kombu/utils/objects.py", line 44, in __get__
    value = obj.__dict__[self.__name__] = self.__get(obj)
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/app/base.py", line 1196, in backend
    return self._get_backend()
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/app/base.py", line 914, in _get_backend
    self.loader)
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/app/backends.py", line 70, in by_url
    return by_name(backend, loader), url
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/app/backends.py", line 50, in by_name
    cls = symbol_by_name(backend, aliases)
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/kombu/utils/imports.py", line 56, in symbol_by_name
    module = imp(module_name, package=package, **kwargs)
  File "/Users/cls/anaconda3/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 724, in exec_module
  File "<frozen importlib._bootstrap_external>", line 860, in get_code
  File "<frozen importlib._bootstrap_external>", line 791, in source_to_code
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/backends/redis.py", line 22
    from . import async, base
                      ^
SyntaxError: invalid syntax

[2019-01-21 12:58:59457:CRITICAL/MainProcess]不可恢复的错误：SyntaxError（“无效语法”）（“/Users/cls/anaconda3/lib/python3.7/site packages/芹菜/backends/redis.py”，22,19，“from.import async，base\n”））
回溯（最近一次呼叫最后一次）：
文件“/Users/cls/anaconda3/lib/python3.7/site packages/kombu/utils/objects.py”，第42行，在__
返回对象名称
KeyError:“后端”
在处理上述异常期间，发生了另一个异常：
回溯（最近一次呼叫最后一次）：
文件“/Users/cls/anaconda3/lib/python3.7/site packages/芹菜/worker/worker.py”，第205行，在开始处
self.blueprint.start（self）
文件“/Users/cls/anaconda3/lib/python3.7/site packages/芹菜/bootsteps.py”，第115行，在开始处
self.on_start（）
文件“/Users/cls/anaconda3/lib/python3.7/site packages/cellery/apps/worker.py”，第139行，在on_start中
self.emit_banner（）
文件“/Users/cls/anaconda3/lib/python3.7/site packages/芹菜/apps/worker.py”，第154行，在emit_横幅中
“\n”，self.startup\u info（艺术线=不使用\u图像）），
文件“/Users/cls/anaconda3/lib/python3.7/site packages/芹菜/apps/worker.py”，第217行，在启动信息中
结果=self.app.backend.as_uri（），
文件“/Users/cls/anaconda3/lib/python3.7/site packages/kombu/utils/objects.py”，第44行，在__
value=obj.\uuuu dict\uuuu[self.\uuuuuu name\uuuuu]=self.\uuuuu get（obj）
后端中的文件“/Users/cls/anaconda3/lib/python3.7/site packages/芹菜/app/base.py”，第1196行
返回self.\u获取\u后端（）
文件“/Users/cls/anaconda3/lib/python3.7/site-packages/芹菜/app/base.py”，第914行，位于“获取”后端
自动装载机）
文件“/Users/cls/anaconda3/lib/python3.7/site packages/芹菜/app/backends.py”，第70行，按url
按名称（后端、加载程序）、url返回
文件“/Users/cls/anaconda3/lib/python3.7/site packages/cellery/app/backends.py”，第50行，以by_的名义
cls=符号按名称（后端、别名）
文件“/Users/cls/anaconda3/lib/python3.7/site-packages/kombu/utils/imports.py”，第56行，符号为
模块=imp（模块名称，包=包，**kwargs）
文件“/Users/cls/anaconda3/lib/python3.7/importlib/_init__.py”，第127行，在导入模块中
return _bootstrap._gcd_import（名称[级别：]，包，级别）
文件“”，第1006行，在\u gcd\u导入中
文件“”，第983行，在_find_和_load中
文件“”，第967行，在“查找”和“加载”中解锁
文件“”，第677行，在\u加载\u解锁
exec_模块中第724行的文件“”
文件“”，第860行，get_代码
文件“”，第791行，源代码为
文件“”，第219行，在“调用”中，删除了“帧”
文件“/Users/cls/anaconda3/lib/python3.7/site packages/芹菜/backends/redis.py”，第22行
从…起导入异步，基本
^
SyntaxError:无效语法

---

我想确认这确实是一个bug，而不是我的配置问题。另外，我更愿意开始异步编程，而不是编写错误报告，因此希望有一个变通方法。

芹菜似乎还不能在python 3.7中工作，只有python 3.6或更低版本。您可以在

async是一个关键字，PEP是从2015年开始的，适用于3.5版。芹菜项目是被放弃了还是怎么了？一年来，我显然低估了这一重构步骤的复杂性无论如何，谢谢你的澄清。

[2019-01-21 12:58:59,457: CRITICAL/MainProcess] Unrecoverable error: SyntaxError('invalid syntax', ('/Users/cls/anaconda3/lib/python3.7/site-packages/celery/backends/redis.py', 22, 19, 'from . import async, base\n'))
Traceback (most recent call last):
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/kombu/utils/objects.py", line 42, in __get__
    return obj.__dict__[self.__name__]
KeyError: 'backend'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/worker/worker.py", line 205, in start
    self.blueprint.start(self)
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/bootsteps.py", line 115, in start
    self.on_start()
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/apps/worker.py", line 139, in on_start
    self.emit_banner()
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/apps/worker.py", line 154, in emit_banner
    ' \n', self.startup_info(artlines=not use_image))),
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/apps/worker.py", line 217, in startup_info
    results=self.app.backend.as_uri(),
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/kombu/utils/objects.py", line 44, in __get__
    value = obj.__dict__[self.__name__] = self.__get(obj)
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/app/base.py", line 1196, in backend
    return self._get_backend()
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/app/base.py", line 914, in _get_backend
    self.loader)
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/app/backends.py", line 70, in by_url
    return by_name(backend, loader), url
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/app/backends.py", line 50, in by_name
    cls = symbol_by_name(backend, aliases)
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/kombu/utils/imports.py", line 56, in symbol_by_name
    module = imp(module_name, package=package, **kwargs)
  File "/Users/cls/anaconda3/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 724, in exec_module
  File "<frozen importlib._bootstrap_external>", line 860, in get_code
  File "<frozen importlib._bootstrap_external>", line 791, in source_to_code
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/cls/anaconda3/lib/python3.7/site-packages/celery/backends/redis.py", line 22
    from . import async, base
                      ^
SyntaxError: invalid syntax