From d44c2abd0fe202f87f0e88d20fac2e19b391dcb7 Mon Sep 17 00:00:00 2001
From: Trey Darley <trey@kingfisherops.com>
Date: Tue, 26 Jun 2018 09:23:52 +0000
Subject: [PATCH] 2.1 spec (somewhat inexplicably) limits dict keys to 250
 chars

---
 stix2/v21/properties.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/stix2/v21/properties.py b/stix2/v21/properties.py
index 935a984..796a5cb 100644
--- a/stix2/v21/properties.py
+++ b/stix2/v21/properties.py
@@ -241,8 +241,8 @@ class DictionaryProperty(Property):
             raise ValueError("The dictionary property must contain a non-empty dictionary")
 
         for k in dictified.keys():
-            if len(k) > 256:
-                raise DictionaryKeyError(k, "longer than 256 characters")
+            if len(k) > 250:
+                raise DictionaryKeyError(k, "longer than 250 characters")
             if not re.match('^[a-zA-Z0-9_-]+$', k):
                 raise DictionaryKeyError(k, "contains characters other than"
                                          "lowercase a-z, uppercase A-Z, "