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test_fvec.py: zero_crossing_rate almost equal

--- a/interfaces/python/test_fvec.py

+++ b/interfaces/python/test_fvec.py

@@ -85,7 +85,7 @@

     def test_zero_crossing_rate(self):

         a = array([0,1,-1], dtype='float32')

-        self.assertEquals (zero_crossing_rate(a), 1./3 )

+        assert_almost_equal (zero_crossing_rate(a), 1./3. )

         a = array([0.]*100, dtype='float32')

         self.assertEquals (zero_crossing_rate(a), 0 )

         a = array([-1.]*100, dtype='float32')