Pop instead of del so we are resiliant to multiple validation errors

jupyter · Jan 21, 2022 · 5f97c02 · 5f97c02
1 parent d2c103f
commit 5f97c02
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/nbformat/validator.py b/nbformat/validator.py
@@ -324,7 +324,7 @@ def iter_validate(nbdict=None, ref=None, version=None, version_minor=None,
             error_tree = validator.error_tree(errors)
             if "metadata" in error_tree:
                 for key in error_tree["metadata"]:
-                    del nbdict["metadata"][key]
+                    nbdict["metadata"].pop(key, None)
 
             if "cells" in error_tree:
                 number_of_cells = len(nbdict.get("cells", 0))