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-rw-r--r--coverage/sqldata.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/coverage/sqldata.py b/coverage/sqldata.py
index e136c7f6..5e27cd85 100644
--- a/coverage/sqldata.py
+++ b/coverage/sqldata.py
@@ -497,6 +497,9 @@ class CoverageData(SimpleReprMixin):
self._set_context_id()
for filename, arcs in arc_data.items():
file_id = self._file_id(filename, add=True)
+ from coverage import env
+ if env.PYVERSION == (3, 11, 0, "alpha", 4, 0):
+ arcs = [(a, b) for a, b in arcs if a is not None and b is not None]
data = [(file_id, self._current_context_id, fromno, tono) for fromno, tono in arcs]
con.executemany(
"insert or ignore into arc " +