From d0f0fd0d81a5ea457386c3e39105aa3bf0e75993 Mon Sep 17 00:00:00 2001
From: cce <devnull@localhost>
Date: Thu, 21 Sep 2006 05:56:36 +0000
Subject: - adding dict_of_lists() to multidict to return a standard   argument
 dictionary where values corresponding to a given   key are returned in a list

If you used the all_as_list argument to parse_formvars that was
removed w/o backwards compatibility, you can convert your code
to add .dict_of_lists() on the return value of parse_formvars
as a replacement.
---
 paste/util/multidict.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/paste/util/multidict.py b/paste/util/multidict.py
index 3d1cc46..37a9d8c 100644
--- a/paste/util/multidict.py
+++ b/paste/util/multidict.py
@@ -90,6 +90,20 @@ class MultiDict(DictMixin):
                 result[key] = value
         return result
 
+    def dict_of_lists(self):
+        """
+        Returns a dictionary where each key is associated with a
+        list of values.
+        """
+        result = {}
+        multi = {}
+        for key, value in self._items:
+            if key in result:
+                result[key].append(value)
+            else:
+                result[key] = [value]
+        return result
+
     def __delitem__(self, key):
         items = self._items
         found = False
-- 
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