-

cool-RR · cool-RR · commit 908d40a9032d · 2014-09-20T00:59:03.000+03:00
diff --git a/source_py3/python_toolbox/combi/perm.py b/source_py3/python_toolbox/combi/perm.py
@@ -101,7 +101,7 @@ def __init__(self, number_or_perm_sequence, perm_space=None):
         ### Finished analyzing `perm_space`. ##################################
         
         self.is_pure = not (self.is_rapplied or self.is_dapplied
-                            or self.is_partial, self.is_combination)
+                            or self.is_partial or self.is_combination)
         
         if not self.is_rapplied: self.unrapplied = self
         if not self.is_dapplied: self.undapplied = self
@@ -208,7 +208,6 @@ def number(self):
     )
     
     @caching.CachedProperty
-    @nifty_collections.LazyTuple.factory()
     def _perm_sequence(self):
         assert (0 <= self.number < 
                                  self.just_dapplied_rapplied_perm_space.length)
@@ -234,7 +233,8 @@ def _perm_sequence(self):
                 sequence_tools.CuteRange(len(result), infinity)
             ))
         assert sequence_tools.get_length(result) == self.length
-        return result
+        return nifty_collections.LazyTuple(result,
+                                           definitely_infinite=self.is_infinite)
     
 
 
