diff --git a/tests/python_tests/feature_test.py b/tests/python_tests/feature_test.py
index 828995d3c..982e44c77 100644
--- a/tests/python_tests/feature_test.py
+++ b/tests/python_tests/feature_test.py
@@ -1,23 +1,24 @@
 #encoding: utf8
 import itertools
 import unittest
+from nose.tools import *
 
+import mapnik2
+from binascii import unhexlify
 from utilities import Todo
 
 class FeatureTest(unittest.TestCase):
     def makeOne(self, *args, **kw):
-        from mapnik2 import Feature
-        return Feature(*args, **kw)
+        return mapnik2.Feature(*args, **kw)
     
     def test_default_constructor(self):
         f = self.makeOne(1)
         self.failUnless(f is not None)
 
     def test_python_extended_constructor(self):
-        from mapnik2 import Box2d
         f = self.makeOne(1, 'POLYGON ((35 10, 10 20, 15 40, 45 45, 35 10),(20 30, 35 35, 30 20, 20 30))', foo="bar")
         self.failUnlessEqual(f['foo'], 'bar')
-        self.failUnlessEqual(f.envelope(),Box2d(10.0,10.0,45.0,45.0))
+        self.failUnlessEqual(f.envelope(),mapnik2.Box2d(10.0,10.0,45.0,45.0))
     
     def test_set_get_properties(self):
         f = self.makeOne(1)
@@ -33,13 +34,12 @@ class FeatureTest(unittest.TestCase):
             test_val(v)
 
     def test_add_wkt_geometry(self):
-        from mapnik2 import Box2d
         def add_geom_wkt(wkt):
             f = self.makeOne(1)
             self.failUnlessEqual(len(f.geometries()), 0)
             f.add_geometries_from_wkt(wkt)
             self.failUnlessEqual(len(f.geometries()), 3)
-            e = Box2d()
+            e = mapnik2.Box2d()
             self.failUnlessEqual(e.valid(), False)
             for g in f.geometries():
                 if not e.valid():
@@ -48,13 +48,13 @@ class FeatureTest(unittest.TestCase):
                     e +=g.envelope()
                     
             self.failUnlessEqual(e, f.envelope())
-        from binascii import unhexlify
+
         def add_geom_wkb(wkb):
             f = self.makeOne(1)
             self.failUnlessEqual(len(f.geometries()), 0)
             f.add_geometries_from_wkb(unhexlify(wkb))
             self.failUnlessEqual(len(f.geometries()), 1)
-            e = Box2d()
+            e = mapnik2.Box2d()
             self.failUnlessEqual(e.valid(), False)
             for g in f.geometries():
                 if not e.valid():
@@ -63,10 +63,40 @@ class FeatureTest(unittest.TestCase):
                     e +=g.envelope()
                     
             self.failUnlessEqual(e, f.envelope())
+
         def run() :
             add_geom_wkt('GEOMETRYCOLLECTION(POINT(4 6),LINESTRING(4 6,7 10),POLYGON ((30 10, 10 20, 20 40, 40 40, 30 10)))')
             add_geom_wkb('010300000001000000050000000000000000003e4000000000000024400000000000002440000000000000344000000000000034400000000000004440000000000000444000000000000044400000000000003e400000000000002440') # POLYGON ((30 10, 10 20, 20 40, 40 40, 30 10))
         run()
-        
+
+
+def test_feature_expression_evaluation():
+    f = mapnik2.Feature(1)
+    f['name'] = 'a'
+    expr = mapnik2.Expression("[name]='a'")
+    evaluated = expr.evaluate(f)
+    eq_(evaluated,True)
+    num_attributes = len(f)
+    eq_(num_attributes,1)
+    eq_(f.id(),1)
+
+# https://github.com/mapnik/mapnik/issues/933
+def test_feature_expression_evaluation_missing_attr():
+    f = mapnik2.Feature(1)
+    f['name'] = 'a'
+    expr = mapnik2.Expression("[fielddoesnotexist]='a'")
+    evaluated = expr.evaluate(f)
+    eq_(evaluated,True)
+    num_attributes = len(f)
+    eq_(num_attributes,1)
+    eq_(f.id(),1)
+
+# https://github.com/mapnik/mapnik/issues/934
+def test_feature_expression_evaluation_attr_with_spaces():
+    f = mapnik2.Feature(1)
+    f['name with space'] = 'a'
+    expr = mapnik2.Expression("[name with space]='a'")
+    eq_(expr.evaluate(f),True)
+
 if __name__ == "__main__":
     [eval(run)() for run in dir() if 'test_' in run]