configparser issue in Python2 and Python3

Hi,

I am facing issues in using this parser in both python 2 & 3.

In python2, I am having issues in installing `configparser` module.

```sh
E:\anand\py> .\Miniconda2\python.exe .\Miniconda2\pkgs\configparser-3.5.0.tar\dist\configparser-3.5.0\setup.py install

error in configparser setup command: Distribution contains no modules or packages for namespace package 'backports'
```
In python3, I am having issues in using `configparser` module. This issue is common in both Windows and Linux.

```py
>>> from configparser import ConfigParser
>>> with open(r'E:\anand\fg_master\tests\unit_tests\fortigate_parser\config_examples\example.conf','r') as f:
... config = f.read()
...
>>> fortigate = ConfigParser(config)
Traceback (most recent call last):
File "", line 1, in
File "E:\anand\py\Miniconda3\lib\configparser.py", line 614, in __init__
for key, value in defaults.items():
AttributeError: 'str' object has no attribute 'items'
```

My skills are insufficient to find a fix for this. I tried to google a lot but couldn't find a solution that I could understand and implement.

Please help. Thank you.