add assertions for loop fsspec

scikit-hep · Oct 17, 2023 · 0a161bc · 0a161bc
1 parent 4f01c1e
commit 0a161bc
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/uproot/source/fsspec.py b/src/uproot/source/fsspec.py
@@ -48,6 +48,8 @@ async def make_fs():
                     )
 
                 self._fs = self._executor.submit(make_fs).result()
+                assert self._fs.loop is self._executor.loop, "loop not bound"
+                assert self._fs.loop.is_running(), "loop not running"
             else:
                 self._executor = concurrent.futures.ThreadPoolExecutor(
                     max_workers=self._num_workers