--- a/src/eric7/PipInterface/piplicenses.py	Tue Nov 21 11:42:45 2023 +0100
+++ b/src/eric7/PipInterface/piplicenses.py	Wed Nov 22 17:19:10 2023 +0100
@@ -428,7 +428,7 @@
     uncommon_items = set()
     set_b_lower = {item.lower() for item in set_b}
     for elem in set_a:
-        if not elem.lower() in set_b_lower:
+        if elem.lower() not in set_b_lower:
             uncommon_items.add(elem)
     return uncommon_items