Created merge_dict utility function

1 files changed, 13 insertions, 0 deletions

diff --git a/jwt/utils.py b/jwt/utils.py
index e6c1ef3..bb7b3a3 100644
--- a/jwt/utils.py
+++ b/jwt/utils.py
@@ -12,3 +12,16 @@ def base64url_decode(input):
 
 def base64url_encode(input):
     return base64.urlsafe_b64encode(input).replace(b'=', b'')
+
+
+def merge_dict(original, updates):
+    if not updates:
+        return original
+
+    try:
+        merged_options = original.copy()
+        merged_options.update(updates)
+    except (AttributeError, ValueError) as e:
+        raise TypeError('original and updates must be a dictionary: %s' % e)
+
+    return merged_options