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, 2 deletions

diff --git a/README.md b/README.md
index b68dba47..ee57246b 100755
--- a/README.md
+++ b/README.md
@@ -57,8 +57,7 @@ pip install -U cmd2
 ```
 
 cmd2 works with Python 3.4+ on Windows, macOS, and Linux. It is pure Python code with
-the only 3rd-party dependencies being on [six](https://pypi.python.org/pypi/six),
-[pyparsing](http://pyparsing.wikispaces.com), and [pyperclip](https://github.com/asweigart/pyperclip).
+the only 3rd-party dependencies being on [pyparsing](http://pyparsing.wikispaces.com), and [pyperclip](https://github.com/asweigart/pyperclip).
 Windows has an additional dependency on [pyreadline](https://pypi.python.org/pypi/pyreadline). Non-Windows platforms
 have an additional dependency on [wcwidth](https://pypi.python.org/pypi/wcwidth). Finally, Python
 3.4 has an additional dependency on [contextlib2](https://pypi.python.org/pypi/contextlib2).