Started removing dependency on six

Removed all dependency on six other than for six.moves.input

Also:
- Started removing code branches which were for Python 2 support

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/help_categories.py b/examples/help_categories.py
index e7e3373d..cfb5f253 100755
--- a/examples/help_categories.py
+++ b/examples/help_categories.py
@@ -18,7 +18,7 @@ class HelpCategories(Cmd):
 
     def __init__(self):
         # Set use_ipython to True to enable the "ipy" command which embeds and interactive IPython shell
-        Cmd.__init__(self, use_ipython=False)
+        super().__init__(use_ipython=False)
 
     def do_connect(self, _):
         """Connect command"""