Fix issue where insert size metrics failed on a sample without adapters

rhpvorderman · rhpvorderman · commit 9476bba36baf · 2024-05-22T12:09:17.000+02:00
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -7,6 +7,11 @@ Changelog
 .. This document is user facing. Please word the changes in such a way
 .. that users understand how the changes affect the new version.
 
+version 0.9.1
+-----------------
++ Fix an issue where the insert size metrics module would crash when no
+  adapters where present.
+
 version 0.9.0
 -----------------
 + MultiQC support since MultiQC version 1.22
diff --git a/src/sequali/report_modules.py b/src/sequali/report_modules.py
@@ -1828,7 +1828,7 @@ def select_relevant_adapters(adapter_list: Sequence[Tuple[str, int]]):
         """
         # Sort list on count
         sorted_list = sorted(adapter_list, reverse=True, key=lambda x: (x[1]))
-        new_list = []
+        new_list = [("", 0) for _ in range(INSERT_SIZE_MAX_ADAPTER_STORE_SIZE)]
         lengths_to_get = set(range(1, INSERT_SIZE_MAX_ADAPTER_STORE_SIZE + 1))
         for adapter, count in sorted_list:
             if len(adapter) in lengths_to_get:
