Just it:
$ git clone https://github.com/mthbernardes/gamblerscan
usage: gamblerscan.py [-h] [-m MIN] [-M MAX] host
positional arguments:
host host to check doors
optional arguments:
-h, --help show this help message and exit
-m MIN, --min MIN Port to start check
-M MAX, --max MAX Port to finish check
Example:
python gamblerscan.py www.github.com