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.

Lib/commands.py

@@ -51,7 +51,7 @@ def getstatusoutput(cmd):
     pipe = os.popen('{ ' + cmd + '; } 2>&1', 'r')
     text = pipe.read()
     sts = pipe.close()
-    if sts == None: sts = 0
+    if sts is None: sts = 0
     if text[-1:] == '\n': text = text[:-1]
     return sts, text