Update the code to better reflect recommended style:

Use != instead of <> since <> is documented as "obsolescent".
Use "is" and "is not" when comparing with None or type objects.
diff --git a/Lib/test/test_pow.py b/Lib/test/test_pow.py
index 0ef6cbf..f1e5179 100644
--- a/Lib/test/test_pow.py
+++ b/Lib/test/test_pow.py
@@ -110,11 +110,11 @@
                 o = pow(i,j) % k
                 n = pow(i,j,k)
                 if o != n: print 'Integer mismatch:', i,j,k
-            if j >= 0 and k <> 0:
+            if j >= 0 and k != 0:
                 o = pow(long(i),j) % k
                 n = pow(long(i),j,k)
                 if o != n: print 'Long mismatch:', i,j,k
-            if i >= 0 and k <> 0:
+            if i >= 0 and k != 0:
                 o = pow(float(i),j) % k
                 n = pow(float(i),j,k)
                 if o != n: print 'Float mismatch:', i,j,k