Why running lldb with HomeBrew Python 2 installed produces ImportError and NameErrors?
I installed six module with pip python package manager and it solves the problem:

$ pip install six
Collecting six
  Using cached six-1.10.0-py2.py3-none-any.whl
Installing collected packages: six
Successfully installed six-1.10.0

$ lldb myExecutableFile
(lldb) target create "myExecutableFile"
Current executable set to 'myExecutableFile' (x86_64).
(lldb)