What meaning is of '#!python'?

[fl]

On Saturday, November 14, 2015 at 8:58:57 PM UTC-5, Chris Angelico wrote:
> On Sun, Nov 15, 2015 at 12:54 PM, fl <gmail.com> wrote:
> > I see an example Python code has such a line at the file beginning:
> >
> > #!python
> >
> >
> > Is there some meaning about it?
> 
> It probably didn't look exactly like that. Please, when you're asking
> questions, COPY AND PASTE rather than retyping some approximation of
> what you saw.
> 
> As it happens, I can tell what you're asking about - it's called a
> shebang - but I very much doubt that it was exactly what you wrote.
> 
> ChrisA

Excuse me. Below is copied from the .py file:

#!python
from numpy import *
from numpy.random import *


def resample(weights):
  n = len(weights)
  indices = []


Thanks,