Executing python script in non-interactive mode on cygwin (windows)

[Pankaj]

I am facing a very basic problem as any new bie would face.

I know perl and now i want to use python

In perl, it is very simple , just
 "perl scriptname.pl"
will execute the script.

But i think python is worse than perl

It takes to interactive mode , which i don;t want to use.

"python scriptname.py"
does not execute python script

It was, i don't know executing it or not.

1. I placed these contents in a file named "1.py"
a,b=0,1
n=5
while n<=0:
    print b
    a=b
    b=a+b
    n=n-1
    print n

Then

2.
on "cygwin shell in windows"
i gave  "python 1.py"

hoping that  it will exeucte and give me output, but nothing was
printed

Does python not support teh non-interactive mode of execution

I have the manuals  and they dont' specify this thing anywhere.  they
tell use "python -c filename"


Please help.
A newbie's request.

Pankaj
i gav