instaBrute Help Required.

Hey guyz, i recently found out that instagram accounts can be hacked by dictionary attacks(Noob here) and so i found out the scripts online and tried them. i found this python script .

now i am new to python and tried my best but i cant get this to work . i kept on getting some error. then i did some googling and realized that it was because of the python version. i tried installing python 2 but still i got some errors... can anyone help a bit and tell me what i am doing wrong. is something wrong with the script...or i am doing it wrong. some help will be appreciated. thanks in advance.