Running apache_log_parser with python 2.6.6

[cassebas]

Hi, I can't get the apache_log_parser to run under python 2.6.6 (I'm stuck on RHEL), I get a syntax error on line 69 of the parsers.py file. It appears to use syntax that wasn't used before python 2.7, e.g.:
(venv26) pythontest % python
Python 2.6.6 (r266:84292, Jul 13 2017, 16:49:51)
[GCC 7.1.1 20170621] on linux4
Type "help", "copyright", "credits" or "license" for more information.

ab = {'a','b'}
File "", line 1
ab = {'a','b'}
^
SyntaxError: invalid syntax

thnxs