shebang python

1#!/usr/bin/python3

1python -m http.server 8000 --bind 127.0.0.1
2

1#!/usr/bin/env python 

1dadaist Apr 1 '20 at 8:11: "If your script is Python 3 only 
2and your target system might have a Python 2 executable in PATH 
3then I recommend #!/usr/bin/env python3 instead."