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Diffstat (limited to 'lib/sqlalchemy/util/concurrency.py')
| -rw-r--r-- | lib/sqlalchemy/util/concurrency.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/sqlalchemy/util/concurrency.py b/lib/sqlalchemy/util/concurrency.py index e26f305d9..60db9cfff 100644 --- a/lib/sqlalchemy/util/concurrency.py +++ b/lib/sqlalchemy/util/concurrency.py @@ -24,6 +24,11 @@ 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: |