[FIX] Error getting malware

Hello

For fix error `[-] Error getting malware.` just edit file `thezoo.py`and replace `python`by `python2.7` to first line
```
git clone https://www.github.com/ytisf/theZoo
cd theZoo;
pip install --user -r requirements.txt;

sed -i -e "s/env python/env python2.7/g" theZoo.py;
chmod +x prep_file.py;
chmod +x theZoo.py;
```

Marc J. (Drthrax74)
