diff --git a/skimage/measure/_regionprops.py b/skimage/measure/_regionprops.py
index eb560291..4e1750a5 100644
--- a/skimage/measure/_regionprops.py
+++ b/skimage/measure/_regionprops.py
@@ -329,17 +329,17 @@ class _RegionProperties(MutableMapping):
             return getattr(self, PROPS[key])
 
     def __eq__(self, other):
-        if not isinstance(other,_RegionProperties):
+        if not isinstance(other, _RegionProperties):
             return False
 
         attr1 = np.array([getattr(self, k, None)for k in PROP_VALS])
         attr2 = np.array([getattr(other, k, None)for k in PROP_VALS])
 
-        for x,y in zip(attr1, attr2):
+        for x, y in zip(attr1, attr2):
             try:
                 #so that NaNs are equal
-                np.testing.assert_equal(x,y)
-            except AssertionError :
+                np.testing.assert_equal(x, y)
+            except AssertionError:
                 return False
 
         return True