This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.
Celery import error
khilnani last edited by khilnani
I was able to pip install celery, but whem i try to import i get an error on import from the kombu package it depends on
from kombu.five import monotonic File "/private/var/mobile/Containers/Shared/AppGroup/6A6950F6-86D6-46AB-96BD-0E55FFAEC184/Pythonista3/Documents/site-packages/kombu/five.py", line 56, in <module> absolute_to_nanoseconds = CoreServices.AbsoluteToNanoseconds File "/var/containers/Bundle/Application/ACE4580A-901E-4AC9-8BA1-EEBF5F98373A/Pythonista3.app/Frameworks/PythonistaKit.framework/pylib/ctypes/__init__.py", line 378, in __getattr__ func = self.__getitem__(name) File "/var/containers/Bundle/Application/ACE4580A-901E-4AC9-8BA1-EEBF5F98373A/Pythonista3.app/Frameworks/PythonistaKit.framework/pylib/ctypes/__init__.py", line 383, in __getitem__ func = self._FuncPtr((name_or_ordinal, self)) AttributeError: dlsym(RTLD_DEFAULT, AbsoluteToNanoseconds): symbol not found
the code at thr line with the issue is
if SYSTEM == 'Darwin' and ctypes is not None: from ctypes.util import find_library libSystem = ctypes.CDLL(find_library('libSystem.dylib')) CoreServices = ctypes.CDLL(find_library('CoreServices'), use_errno=True) mach_absolute_time = libSystem.mach_absolute_time mach_absolute_time.restype = ctypes.c_uint64 absolute_to_nanoseconds = CoreServices.AbsoluteToNanoseconds ##error## absolute_to_nanoseconds.restype = ctypes.c_uint64 absolute_to_nanoseconds.argtypes = [ctypes.c_uint64]
I'm just trying to see if celery works at all when using sqlite, example
from celery import Celery app = Celery('hello', broker='sqla+sqlite:///celerydb.sqlite')
JonB last edited by JonB
you could replace the last 3 lines with
absolute_to_nanoseconds = lambda t:1000*t
Thoughh there is a good chance something else will fail
khilnani last edited by
i could patch it but its a dependency of celery, so might become a bit wieldy soon.
i was wondering if anyone (or @omz ) knew why it might be failing and its something missing on iOS thats availablenon desktop
JonB last edited by
Because it uses depreciated functions, and more importantly functions which are not
supported on iOS. Technically, there might be a way to patch ctypes before you import to always return the same object, which you can then pre-patch to contain the faked method. On iOS dynamic loading is not allowed, so only static libraries that were compiled in are available, as well as NSBundles.