From 67b6f895975205ca1e311ec08079c9ed84c1d6a7 Mon Sep 17 00:00:00 2001
From: Joachim Ungar <joachim.ungar@eox.at>
Date: Wed, 9 Mar 2022 14:26:11 +0100
Subject: [PATCH] don't raise KeyError when cleaning up futures

---
 mapchete/_executor.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mapchete/_executor.py b/mapchete/_executor.py
index bcdc1dd3..b9e267d3 100644
--- a/mapchete/_executor.py
+++ b/mapchete/_executor.py
@@ -180,7 +180,10 @@ def _finished_future(self, future, result=None, _dask=False):
         Release future from cluster explicitly and wrap result around FinishedFuture object.
         """
         if not _dask:
-            self.running_futures.remove(future)
+            try:
+                self.running_futures.remove(future)
+            except KeyError:  # pragma: no cover
+                pass
         self.finished_futures.discard(future)
         fut_exception = future.exception(timeout=FUTURE_TIMEOUT)
         if fut_exception:  # pragma: no cover