BUGFIX: avoid cryptic TypeError when pickling FormsDict objects.

1 files changed, 3 insertions, 0 deletions

diff --git a/bottle.py b/bottle.py
index 9e7f900..ed15b5b 100644
--- a/bottle.py
+++ b/bottle.py
@@ -1765,6 +1765,9 @@ class FormsDict(MultiDict):
             return default
 
     def __getattr__(self, name, default=unicode()):
+        # Without this guard, pickle generates a cryptic TypeError:
+        if name.startswith('__') and name.endswith('__'):
+            return super(FormsDict, self).__getattr__(name)
         return self.getunicode(name, default=default)