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📁 ..
📄 __init__.py(6.3 KB)
📄 __init__.pyc(7.77 KB)
📄 _collections.py(28.46 KB)
📄 _collections.pyc(49.44 KB)
📄 _compat_py3k.py(2.14 KB)
📄 _concurrency_py3k.py(6.39 KB)
📄 _preloaded.py(2.34 KB)
📄 _preloaded.pyc(2.97 KB)
📄 compat.py(17.95 KB)
📄 compat.pyc(21.75 KB)
📄 concurrency.py(2.22 KB)
📄 concurrency.pyc(2.59 KB)
📄 deprecations.py(13.35 KB)
📄 deprecations.pyc(12.85 KB)
📄 langhelpers.py(54.97 KB)
📄 langhelpers.pyc(62.67 KB)
📄 queue.py(9.08 KB)
📄 queue.pyc(10.42 KB)
📄 tool_support.py(5.99 KB)
📄 topological.py(2.79 KB)
📄 topological.pyc(2.54 KB)

Editing: concurrency.py

# util/concurrency.py
# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: https://www.opensource.org/licenses/mit-license.php

from . import compat

have_greenlet = False
greenlet_error = None

if compat.py3k:
    try:
        import greenlet  # noqa: F401
    except ImportError as e:
        greenlet_error = str(e)
    else:
        have_greenlet = True
        from ._concurrency_py3k import await_only
        from ._concurrency_py3k import await_fallback
        from ._concurrency_py3k import greenlet_spawn
        from ._concurrency_py3k import is_exit_exception
        from ._concurrency_py3k import AsyncAdaptedLock
        from ._concurrency_py3k import _util_async_run  # noqa: F401
        from ._concurrency_py3k import (
            _util_async_run_coroutine_function,
        )  # noqa: F401, E501
        from ._concurrency_py3k import asyncio  # noqa: F401

# does not need greennlet, just Python 3
    from ._compat_py3k import asynccontextmanager  # noqa: F401

if not have_greenlet:

asyncio = None  # noqa: F811

def _not_implemented():
        # this conditional is to prevent pylance from considering
        # greenlet_spawn() etc as "no return" and dimming out code below it
        if have_greenlet:
            return None

if not compat.py3k:
            raise ValueError("Cannot use this function in py2.")
        else:
            raise ValueError(
                "the greenlet library is required to use this function."
                " %s" % greenlet_error
                if greenlet_error
                else ""
            )

def is_exit_exception(e):  # noqa: F811
        return not isinstance(e, Exception)

def await_only(thing):  # noqa: F811
        _not_implemented()

def await_fallback(thing):  # noqa: F811
        return thing

def greenlet_spawn(fn, *args, **kw):  # noqa: F811
        _not_implemented()

def AsyncAdaptedLock(*args, **kw):  # noqa: F811
        _not_implemented()

def _util_async_run(fn, *arg, **kw):  # noqa: F811
        return fn(*arg, **kw)

def _util_async_run_coroutine_function(fn, *arg, **kw):  # noqa: F811
        _not_implemented()

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Editing: concurrency.py

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