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-rw-r--r--topics/queries-and-prepared-statements-in-python.gmi2
1 files changed, 1 insertions, 1 deletions
diff --git a/topics/queries-and-prepared-statements-in-python.gmi b/topics/queries-and-prepared-statements-in-python.gmi
index 642ed96..969c27f 100644
--- a/topics/queries-and-prepared-statements-in-python.gmi
+++ b/topics/queries-and-prepared-statements-in-python.gmi
@@ -29,7 +29,7 @@ curr.execute(
         WHERE Strain.Name IN ({})
         and Strain.SpeciesId=Species.Id
         and Species.name = %s
-    """.format(", ".join(sample_data_keys)),
+    """.format(", ".join(["%s"] * len(sample_data_keys))),
     (sample_data_keys + (dataset.group.species,)))
 ```