commit - 842f3e21dc7d86e330729e04f758d990afd0cfae
commit + 2e30f2846c31d0bcd48b9bbfa5158f0f943eabfd
blob - 5c1eb3a6880bb91cdb18a512cfde52b02b1e1990
blob + 90f7de22615ee11b67adfd203f46044e4367e7a7
--- dulwich/objects.py
+++ dulwich/objects.py
@@ -563,12 +563,6 @@ class ShaFile(object):
         if not isinstance(other, ShaFile):
             raise TypeError
         return self.id <= other.id
-
-    def __cmp__(self, other):
-        """Compare the SHA of this object with that of the other object."""
-        if not isinstance(other, ShaFile):
-            raise TypeError
-        return cmp(self.id, other.id)  # noqa: F821
 
 
 class Blob(ShaFile):