X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/7bf8f6c701e28e574c137b0c942522e8f8ee4d8c..3735d52b65928e3626a8e223acadc318a3d31097:/sdk/python/arvados/collection.py

diff --git a/sdk/python/arvados/collection.py b/sdk/python/arvados/collection.py
index fa782a1ac2..0f49438b6c 100644
--- a/sdk/python/arvados/collection.py
+++ b/sdk/python/arvados/collection.py
@@ -472,6 +472,10 @@ class CollectionWriter(CollectionBase):
             raise errors.AssertionError(
                 "Manifest filenames cannot contain whitespace: %s" %
                 newfilename)
+        elif re.search(r'\x00', newfilename):
+            raise errors.AssertionError(
+                "Manifest filenames cannot contain NUL characters: %s" %
+                newfilename)
         self._current_file_name = newfilename
 
     def current_file_name(self):