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.

1 files changed, 1 insertions, 1 deletions

diff --git a/Lib/cmd.py b/Lib/cmd.py
index 41b2293..7671573 100644
--- a/Lib/cmd.py
+++ b/Lib/cmd.py
@@ -57,7 +57,7 @@ class Cmd:
 
     def cmdloop(self, intro=None):
         self.preloop()
-        if intro != None:
+        if intro is not None:
             self.intro = intro
         if self.intro:
             print self.intro