Check whether there are new PubMed IDs before beginning the fetch.

1 files changed, 4 insertions, 0 deletions

diff --git a/scripts/phenotypes_bulk_edit.py b/scripts/phenotypes_bulk_edit.py
index b647199..c0174be 100644
--- a/scripts/phenotypes_bulk_edit.py
+++ b/scripts/phenotypes_bulk_edit.py
@@ -107,6 +107,10 @@ def __fetch_new_pubmed_ids__(pubmed_ids):
     # See whether we can retrieve multiple publications in one go
     # Parse data and save to DB
     # Return PublicationId(s) for new publication(s).
+    if len(pubmed_ids) == 0:
+        logger.debug("There are no new PubMed IDs to fetch")
+        return tuple()
+
     logger.info("Fetching publications data for the following PubMed IDs: %s",
                 ", ".join(pubmed_ids))