60 lines
1.7 KiB
Python
60 lines
1.7 KiB
Python
from . import compat
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have_greenlet = False
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if compat.py3k:
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try:
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import greenlet # noqa F401
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except ImportError:
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pass
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else:
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have_greenlet = True
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from ._concurrency_py3k import await_only
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from ._concurrency_py3k import await_fallback
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from ._concurrency_py3k import greenlet_spawn
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from ._concurrency_py3k import is_exit_exception
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from ._concurrency_py3k import AsyncAdaptedLock
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from ._concurrency_py3k import _util_async_run # noqa F401
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from ._concurrency_py3k import (
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_util_async_run_coroutine_function,
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) # noqa F401, E501
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from ._concurrency_py3k import asyncio # noqa F401
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if not have_greenlet:
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asyncio = None # noqa F811
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def _not_implemented():
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# this conditional is to prevent pylance from considering
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# greenlet_spawn() etc as "no return" and dimming out code below it
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if have_greenlet:
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return None
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if not compat.py3k:
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raise ValueError("Cannot use this function in py2.")
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else:
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raise ValueError(
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"the greenlet library is required to use this function."
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)
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def is_exit_exception(e): # noqa F811
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return not isinstance(e, Exception)
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def await_only(thing): # noqa F811
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_not_implemented()
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def await_fallback(thing): # noqa F81
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return thing
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def greenlet_spawn(fn, *args, **kw): # noqa F81
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_not_implemented()
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def AsyncAdaptedLock(*args, **kw): # noqa F81
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_not_implemented()
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def _util_async_run(fn, *arg, **kw): # noqa F81
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return fn(*arg, **kw)
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def _util_async_run_coroutine_function(fn, *arg, **kw): # noqa F81
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_not_implemented()
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