avoid UnicodeEncodeError when object name contains special characters

README.txt

@@ -50,7 +50,7 @@ top-level loops container and a concept manager:
   >>> cc1.title
   u''
   >>> loopsRoot.getLoopsUri(cc1)
-  '.loops/concepts/cc1'
+  u'.loops/concepts/cc1'
 
   >>> cc2 = Concept(u'Zope 3')
   >>> concepts['cc2'] = cc2
@@ -154,7 +154,7 @@ also the relationship to the context object using a combination
 of URIs to item and the predicate of the relationship:
 
   >>> [c.token for c in children]
-  ['.loops/concepts/cc2:.loops/concepts/standard']
+  [u'.loops/concepts/cc2:.loops/concepts/standard']
 
 There is also a concept configuration view that allows updating the
 underlying context object:
@@ -500,7 +500,7 @@ view; these views we have to provide as multi-adapters:
   [u'd001.txt', u'd002.txt', u'd003.txt', u'doc1', u'm1.m11.m111']
 
   >>> view.target.title, view.target.token
-  ('New Resource', '.loops/resources/m1.m11.m111')
+  ('New Resource', u'.loops/resources/m1.m11.m111')
 
 A node object provides the targetSchema of its target:
 

base.py

@@ -75,7 +75,11 @@ class Loops(Folder):
         return self.get('records')
 
     def getLoopsUri(self, obj):
-        return str(loopsPrefix + getPath(obj)[len(getPath(self)):])
+        #return str(loopsPrefix + getPath(obj)[len(getPath(self)):])
+        uri = loopsPrefix + getPath(obj)[len(getPath(self)):]
+        #if isinstance(uri, unicode):
+        #    uri = uri.encode('UTF-8')
+        return uri
 
     def loopsTraverse(self, uri):
         prefix = loopsPrefix + '/'

helpers.txt

@@ -109,7 +109,7 @@ So let's check the type of the type object:
   >>> type_type.title
   u'Type'
   >>> type_type.token
-  '.loops/concepts/type'
+  u'.loops/concepts/type'
   >>> type_type.tokenForSearch
   'loops:concept:type'
   >>> type_type.qualifiers
@@ -149,7 +149,7 @@ Now let's have a look at resources.
   >>> file1_type.title
   u'File'
   >>> file1_type.token
-  '.loops/concepts/file'
+  u'.loops/concepts/file'
   >>> file1_type.tokenForSearch
   'loops:resource:file'
   >>> file1_type.qualifiers
@@ -181,7 +181,7 @@ Now let's have a look at resources.
 
   >>> img1_type = IType(img1)
   >>> img1_type.token
-  '.loops/concepts/file'
+  u'.loops/concepts/file'
   >>> img1_type.tokenForSearch
   'loops:resource:file'
   >>> img1_type.title