Sys.argv

Hi,
I have now one basic doubt. While trying to read the command line options, I find a strange behaviour of python interpreter. (on windows; not sure if this is the same in unix like systems). Could somebody give some pointers/clue why this happens.

Code:

import sys

if __name__ == '__main__':
print sys.argv

The above code snippet prints just the file name when run as :
D:\> get_option.py abc
['D:\\get_option.py']

but prints all the arguments when invoked explicitly by python.

D:\>python get_option.py abc
['.\\get_option.py', 'abc']

Works like this in unix:

$ chmod +x p.py # make "it" executable
$ cat p.py # show "it"
#! /usr/bin/python
import sys
print(sys.argv)
$
$
$ ./p.py abc # run "it"
['./p.py', 'abc']
$
$
$ python ./p.py abc # run "it"
['./p.py', 'abc']
$
$
$ python -ic 'import p' abc # run "it"
['-c', 'abc']
>>>

Works like this in unix: