Add missing global declaration in arv-copy.

No issue #.

diff --git a/sdk/python/arvados/commands/arv_copy.py b/sdk/python/arvados/commands/arv_copy.py
index 75f8ca97bd0025fc5d4147ee8925df68b995a159..6632cfdaeaafbfafc60b086dda7ee709a64afe79 100755 (executable)
--- a/sdk/python/arvados/commands/arv_copy.py
+++ b/sdk/python/arvados/commands/arv_copy.py
@@ -139,6 +139,7 @@ def main():
     exit(0)
 
 def set_src_owner_uuid(resource, uuid, args):
+    global src_owner_uuid
     c = resource.get(uuid=uuid).execute(num_retries=args.retries)
     src_owner_uuid = c.get("owner_uuid")