--- a/eric6/Project/ProjectSourcesBrowser.py	Sat Nov 21 19:31:16 2020 +0100
+++ b/eric6/Project/ProjectSourcesBrowser.py	Sun Nov 22 16:04:59 2020 +0100
@@ -839,7 +839,7 @@
                     try:
                         with open(packageFile, "w", encoding="utf-8"):
                             pass
-                    except IOError as err:
+                    except OSError as err:
                         E5MessageBox.critical(
                             self,
                             self.tr("Add new Python package"),